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90562025 = 523622481
BaseRepresentation
bin1010110010111…
…01110111101001
320022102000202002
411121131313221
5141140441100
612553020345
72146523141
oct531356751
9208360662
1090562025
1147135654
12263b46b5
13159ba9c8
14c055921
157e3d2d5
hex565dde9

90562025 has 6 divisors (see below), whose sum is σ = 112296942. Its totient is φ = 72449600.

The previous prime is 90562019. The next prime is 90562027. The reversal of 90562025 is 52026509.

It can be written as a sum of positive squares in 3 ways, for example, as 1297321 + 89264704 = 1139^2 + 9448^2 .

It is not a de Polignac number, because 90562025 - 226 = 23453161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90562027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1811216 + ... + 1811265.

It is an arithmetic number, because the mean of its divisors is an integer number (18716157).

Almost surely, 290562025 is an apocalyptic number.

It is an amenable number.

90562025 is a deficient number, since it is larger than the sum of its proper divisors (21734917).

90562025 is a wasteful number, since it uses less digits than its factorization.

90562025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3622491 (or 3622486 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 90562025 is about 9516.4081984749. The cubic root of 90562025 is about 449.0713771874.

The spelling of 90562025 in words is "ninety million, five hundred sixty-two thousand, twenty-five".

Divisors: 1 5 25 3622481 18112405 90562025