5256777880 has 256 divisors, whose sum is σ = 13685760000. Its totient is φ = 1806520320.

The previous prime is 5256777871. The next prime is 5256777913. The reversal of 5256777880 is 887776525.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 48227266 + ... + 48227374.

It is an arithmetic number, because the mean of its divisors is an integer number (53460000).

Almost surely, 2^5256777880 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5256777880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6842880000).

5256777880 is an abundant number, since it is smaller than the sum of its proper divisors (8428982120).

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

5256777880 is a wasteful number, since it uses less digits than its factorization.

5256777880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282 (or 278 counting only the distinct ones).

The product of its (nonzero) digits is 6585600, while the sum is 55.

The square root of 5256777880 is about 72503.6404603245. The cubic root of 5256777880 is about 1738.7609402164.

The spelling of 5256777880 in words is "five billion, two hundred fifty-six million, seven hundred seventy-seven thousand, eight hundred eighty".