53965550988 has 18 divisors (see below), whose sum is σ = 136412920644. Its totient is φ = 17988516984.

The previous prime is 53965550981. The next prime is 53965551053. The reversal of 53965550988 is 88905556935.

53965550988 is a `hidden beast` number, since 539 + 6 + 5 + 5 + 5 + 0 + 98 + 8 = 666.

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

It is a super-2 number, since 2×53965550988² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53965550981) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 749521506 + ... + 749521577.

Almost surely, 2^53965550988 is an apocalyptic number.

It is an amenable number.

53965550988 is an abundant number, since it is smaller than the sum of its proper divisors (82447369656).

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

53965550988 is a wasteful number, since it uses less digits than its factorization.

53965550988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1499043093 (or 1499043088 counting only the distinct ones).

The product of its (nonzero) digits is 58320000, while the sum is 63.

The spelling of 53965550988 in words is "fifty-three billion, nine hundred sixty-five million, five hundred fifty thousand, nine hundred eighty-eight".