53120821924 has 24 divisors (see below), whose sum is σ = 93510799928. Its totient is φ = 26403563520.

The previous prime is 53120821921. The next prime is 53120821939. The reversal of 53120821924 is 42912802135.

It can be written as a sum of positive squares in 4 ways, for example, as 10126799424 + 42994022500 = 100632^2 + 207350^2 .

It is not an unprimeable number, because it can be changed into a prime (53120821921) 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, 2099332 + ... + 2124484.

Almost surely, 2^53120821924 is an apocalyptic number.

It is an amenable number.

53120821924 is a deficient number, since it is larger than the sum of its proper divisors (40389978004).

53120821924 is a wasteful number, since it uses less digits than its factorization.

53120821924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28255 (or 28253 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The spelling of 53120821924 in words is "fifty-three billion, one hundred twenty million, eight hundred twenty-one thousand, nine hundred twenty-four".