53187642 has 24 divisors (see below), whose sum is σ = 115514100. Its totient is φ = 17687040.

The previous prime is 53187613. The next prime is 53187643. The reversal of 53187642 is 24678135.

53187642 is a `hidden beast` number, since 5 + 3 + 1 + 8 + 7 + 642 = 666.

53187642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 52838361 + 349281 = 7269^2 + 591^2 .

It is a junction number, because it is equal to n+sod(n) for n = 53187597 and 53187606.

It is not an unprimeable number, because it can be changed into a prime (53187643) 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 11 ways as a sum of consecutive naturals, for example, 4792 + ... + 11372.

Almost surely, 2^53187642 is an apocalyptic number.

53187642 is an abundant number, since it is smaller than the sum of its proper divisors (62326458).

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

53187642 is a wasteful number, since it uses less digits than its factorization.

53187642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7038 (or 7035 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 53187642 is about 7292.9858082955. The cubic root of 53187642 is about 376.0713469935.

The spelling of 53187642 in words is "fifty-three million, one hundred eighty-seven thousand, six hundred forty-two".