53113542021 has 24 divisors (see below), whose sum is σ = 82304520480. Its totient is φ = 34188022512.

The previous prime is 53113541989. The next prime is 53113542029. The reversal of 53113542021 is 12024531135.

53113542021 is a `hidden beast` number, since 5 + 3 + 113 + 542 + 0 + 2 + 1 = 666.

It is not a de Polignac number, because 53113542021 - 2⁵ = 53113541989 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53113542029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3761475 + ... + 3775568.

It is an arithmetic number, because the mean of its divisors is an integer number (3429355020).

Almost surely, 2^53113542021 is an apocalyptic number.

It is an amenable number.

53113542021 is a deficient number, since it is larger than the sum of its proper divisors (29190978459).

53113542021 is an equidigital number, since it uses as much as digits as its factorization.

53113542021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7537087 (or 7537075 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The spelling of 53113542021 in words is "fifty-three billion, one hundred thirteen million, five hundred forty-two thousand, twenty-one".