53136978 has 32 divisors (see below), whose sum is σ = 110350080. Its totient is φ = 17045760.

The previous prime is 53136973. The next prime is 53136983. The reversal of 53136978 is 87963135.

53136978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (53136973) and next prime (53136983).

It is not an unprimeable number, because it can be changed into a prime (53136971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15658 + ... + 18746.

It is an arithmetic number, because the mean of its divisors is an integer number (3448440).

Almost surely, 2^53136978 is an apocalyptic number.

53136978 is an abundant number, since it is smaller than the sum of its proper divisors (57213102).

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

53136978 is a wasteful number, since it uses less digits than its factorization.

53136978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3202.

The product of its digits is 136080, while the sum is 42.

The square root of 53136978 is about 7289.5115062671. The cubic root of 53136978 is about 375.9518998754.

The spelling of 53136978 in words is "fifty-three million, one hundred thirty-six thousand, nine hundred seventy-eight".