5256696690 has 320 divisors, whose sum is σ = 17026454016. Its totient is φ = 1137742848.

The previous prime is 5256696689. The next prime is 5256696707. The reversal of 5256696690 is 966966525.

It is a super-2 number, since 2×5256696690² = 55265720181313912200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

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 159 ways as a sum of consecutive naturals, for example, 22560814 + ... + 22561046.

Almost surely, 2^5256696690 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5256696690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8513227008).

5256696690 is an abundant number, since it is smaller than the sum of its proper divisors (11769757326).

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

5256696690 is a wasteful number, since it uses less digits than its factorization.

5256696690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455 (or 446 counting only the distinct ones).

The product of its (nonzero) digits is 5248800, while the sum is 54.

The square root of 5256696690 is about 72503.0805552426. The cubic root of 5256696690 is about 1738.7519885524.

The spelling of 5256696690 in words is "five billion, two hundred fifty-six million, six hundred ninety-six thousand, six hundred ninety".