53815625904 has 40 divisors (see below), whose sum is σ = 141646795632. Its totient is φ = 17600078080.

The previous prime is 53815625839. The next prime is 53815625909. The reversal of 53815625904 is 40952651835.

It is a super-2 number, since 2×53815625904² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (53815625909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10574427 + ... + 10579514.

Almost surely, 2^53815625904 is an apocalyptic number.

It is an amenable number.

53815625904 is an abundant number, since it is smaller than the sum of its proper divisors (87831169728).

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

53815625904 is a wasteful number, since it uses less digits than its factorization.

53815625904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21154005 (or 21153999 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 48.

The spelling of 53815625904 in words is "fifty-three billion, eight hundred fifteen million, six hundred twenty-five thousand, nine hundred four".