53355042780 has 48 divisors (see below), whose sum is σ = 160885977504. Its totient is φ = 13133548800.

The previous prime is 53355042733. The next prime is 53355042799. The reversal of 53355042780 is 8724055335.

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 15 ways as a sum of consecutive naturals, for example, 34201171 + ... + 34202730.

It is an arithmetic number, because the mean of its divisors is an integer number (3351791198).

Almost surely, 2^53355042780 is an apocalyptic number.

It is an amenable number.

53355042780 is an abundant number, since it is smaller than the sum of its proper divisors (107530934724).

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

53355042780 is a wasteful number, since it uses less digits than its factorization.

53355042780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68403926 (or 68403924 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 42.

The spelling of 53355042780 in words is "fifty-three billion, three hundred fifty-five million, forty-two thousand, seven hundred eighty".