53099136 has 48 divisors (see below), whose sum is σ = 152801610. Its totient is φ = 17699328.

The previous prime is 53099131. The next prime is 53099149. The reversal of 53099136 is 63199035.

53099136 is a `hidden beast` number, since 530 + 9 + 91 + 36 = 666.

It can be written as a sum of positive squares in only one way, i.e., 45481536 + 7617600 = 6744^2 + 2760^2 .

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 53099136.

It is not an unprimeable number, because it can be changed into a prime (53099131) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21895 + ... + 24198.

Almost surely, 2^53099136 is an apocalyptic number.

It is an amenable number.

53099136 is an abundant number, since it is smaller than the sum of its proper divisors (99702474).

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

53099136 is a wasteful number, since it uses less digits than its factorization.

53099136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46113 (or 46098 counting only the distinct ones).

The product of its (nonzero) digits is 21870, while the sum is 36.

The square root of 53099136 is about 7286.9153967917. The cubic root of 53099136 is about 375.8626327842.

It can be divided in two parts, 53099 and 136, that added together give a palindrome (53235).

The spelling of 53099136 in words is "fifty-three million, ninety-nine thousand, one hundred thirty-six".