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897511025 = 52173207517
BaseRepresentation
bin110101011111101…
…110111001110001
32022112211021200002
4311133232321301
53314230323100
6225020435345
731145501135
oct6537567161
92275737602
10897511025
11420692354
122106a8b55
13113c34818
14872ad3c5
1553bd92d5
hex357eee71

897511025 has 12 divisors (see below), whose sum is σ = 1119352092. Its totient is φ = 713855040.

The previous prime is 897511019. The next prime is 897511031. The reversal of 897511025 is 520115798.

It is an interprime number because it is at equal distance from previous prime (897511019) and next prime (897511031).

It can be written as a sum of positive squares in 6 ways, for example, as 8755681 + 888755344 = 2959^2 + 29812^2 .

It is not a de Polignac number, because 897511025 - 210 = 897510001 is a prime.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 897511025.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 99434 + ... + 108083.

It is an arithmetic number, because the mean of its divisors is an integer number (93279341).

Almost surely, 2897511025 is an apocalyptic number.

It is an amenable number.

897511025 is a deficient number, since it is larger than the sum of its proper divisors (221841067).

897511025 is a wasteful number, since it uses less digits than its factorization.

897511025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207700 (or 207695 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 38.

The square root of 897511025 is about 29958.4883630667. The cubic root of 897511025 is about 964.5985336384.

The spelling of 897511025 in words is "eight hundred ninety-seven million, five hundred eleven thousand, twenty-five".

Divisors: 1 5 25 173 865 4325 207517 1037585 5187925 35900441 179502205 897511025