5257611726 has 16 divisors (see below), whose sum is σ = 11133766224. Its totient is φ = 1649446784.

The previous prime is 5257611683. The next prime is 5257611787. The reversal of 5257611726 is 6271167525.

It is a happy number.

It is a super-2 number, since 2×5257611726² = 55284962122745398152, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25772505 + ... + 25772708.

It is an arithmetic number, because the mean of its divisors is an integer number (695860389).

Almost surely, 2^5257611726 is an apocalyptic number.

5257611726 is an abundant number, since it is smaller than the sum of its proper divisors (5876154498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5257611726 is a wasteful number, since it uses less digits than its factorization.

5257611726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51545235.

The product of its digits is 176400, while the sum is 42.

The square root of 5257611726 is about 72509.3906056312. The cubic root of 5257611726 is about 1738.8528711948.

The spelling of 5257611726 in words is "five billion, two hundred fifty-seven million, six hundred eleven thousand, seven hundred twenty-six".