57621525756 has 96 divisors (see below), whose sum is σ = 141920009280. Its totient is φ = 18170880000.

The previous prime is 57621525743. The next prime is 57621525811. The reversal of 57621525756 is 65752512675.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 57621525699 and 57621525708.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3400906 + ... + 3417806.

It is an arithmetic number, because the mean of its divisors is an integer number (1478333430).

Almost surely, 2^57621525756 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 57621525756, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70960004640).

57621525756 is an abundant number, since it is smaller than the sum of its proper divisors (84298483524).

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

57621525756 is a wasteful number, since it uses less digits than its factorization.

57621525756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17135 (or 17133 counting only the distinct ones).

The product of its digits is 4410000, while the sum is 51.

The spelling of 57621525756 in words is "fifty-seven billion, six hundred twenty-one million, five hundred twenty-five thousand, seven hundred fifty-six".