53957986452 has 18 divisors (see below), whose sum is σ = 136393799178. Its totient is φ = 17985995472.

The previous prime is 53957986447. The next prime is 53957986493. The reversal of 53957986452 is 25468975935.

53957986452 is a `hidden beast` number, since 5 + 3 + 9 + 579 + 8 + 6 + 4 + 52 = 666.

It can be written as a sum of positive squares in only one way, i.e., 52824586896 + 1133399556 = 229836^2 + 33666^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×53957986452² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 53957986452.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 749416443 + ... + 749416514.

Almost surely, 2^53957986452 is an apocalyptic number.

It is an amenable number.

53957986452 is an abundant number, since it is smaller than the sum of its proper divisors (82435812726).

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

53957986452 is a wasteful number, since it uses less digits than its factorization.

53957986452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1498832967 (or 1498832962 counting only the distinct ones).

The product of its digits is 81648000, while the sum is 63.

The spelling of 53957986452 in words is "fifty-three billion, nine hundred fifty-seven million, nine hundred eighty-six thousand, four hundred fifty-two".