5257557526 has 32 divisors (see below), whose sum is σ = 9065952000. Its totient is φ = 2266457760.

The previous prime is 5257557491. The next prime is 5257557527. The reversal of 5257557526 is 6257557525.

It is a super-2 number, since 2×5257557526² = 55283822278398481352, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 5257557526.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5257557527) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39876 + ... + 110023.

It is an arithmetic number, because the mean of its divisors is an integer number (283311000).

Almost surely, 2^5257557526 is an apocalyptic number.

5257557526 is a deficient number, since it is larger than the sum of its proper divisors (3808394474).

5257557526 is a wasteful number, since it uses less digits than its factorization.

5257557526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150004.

The product of its digits is 3675000, while the sum is 49.

The square root of 5257557526 is about 72509.0168599740. The cubic root of 5257557526 is about 1738.8468959755.

Subtracting 5257557526 from its reverse (6257557525), we obtain a palindrome (999999999).

The spelling of 5257557526 in words is "five billion, two hundred fifty-seven million, five hundred fifty-seven thousand, five hundred twenty-six".