53156418 has 32 divisors (see below), whose sum is σ = 124467840. Its totient is φ = 14816640.

The previous prime is 53156417. The next prime is 53156429. The reversal of 53156418 is 81465135.

It is not an unprimeable number, because it can be changed into a prime (53156417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13713 + ... + 17156.

It is an arithmetic number, because the mean of its divisors is an integer number (3889620).

Almost surely, 2^53156418 is an apocalyptic number.

53156418 is an abundant number, since it is smaller than the sum of its proper divisors (71311422).

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

53156418 is a wasteful number, since it uses less digits than its factorization.

53156418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30922.

The product of its digits is 14400, while the sum is 33.

The square root of 53156418 is about 7290.8448070165. The cubic root of 53156418 is about 375.9977412344.

The spelling of 53156418 in words is "fifty-three million, one hundred fifty-six thousand, four hundred eighteen".