Search a number
-
+
57425501 = 723173697
BaseRepresentation
bin1101101100001…
…1111001011101
311000001111222102
43123003321131
5104200104001
65410454445
71265052200
oct333037135
9130044872
1057425501
112a4626a1
1217294425
13bb881b3
1478ab937
155094e6b
hex36c3e5d

57425501 has 12 divisors (see below), whose sum is σ = 67029948. Its totient is φ = 49053312.

The previous prime is 57425483. The next prime is 57425513. The reversal of 57425501 is 10552475.

It can be written as a sum of positive squares in 2 ways, for example, as 4120900 + 53304601 = 2030^2 + 7301^2 .

It is not a de Polignac number, because 57425501 - 218 = 57163357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57425551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13685 + ... + 17381.

It is an arithmetic number, because the mean of its divisors is an integer number (5585829).

Almost surely, 257425501 is an apocalyptic number.

It is an amenable number.

57425501 is a deficient number, since it is larger than the sum of its proper divisors (9604447).

57425501 is a wasteful number, since it uses less digits than its factorization.

57425501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4028 (or 4021 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 29.

The square root of 57425501 is about 7577.9615332885. The cubic root of 57425501 is about 385.8053664523.

Adding to 57425501 its reverse (10552475), we get a palindrome (67977976).

The spelling of 57425501 in words is "fifty-seven million, four hundred twenty-five thousand, five hundred one".

Divisors: 1 7 49 317 2219 3697 15533 25879 181153 1171949 8203643 57425501