53157633 has 4 divisors (see below), whose sum is σ = 70876848. Its totient is φ = 35438420.

The previous prime is 53157619. The next prime is 53157647. The reversal of 53157633 is 33675135.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (53157619) and next prime (53157647).

It is a cyclic number.

It is not a de Polignac number, because 53157633 - 2²⁴ = 36380417 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 53157594 and 53157603.

It is not an unprimeable number, because it can be changed into a prime (53157673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8859603 + ... + 8859608.

It is an arithmetic number, because the mean of its divisors is an integer number (17719212).

Almost surely, 2^53157633 is an apocalyptic number.

It is an amenable number.

53157633 is a deficient number, since it is larger than the sum of its proper divisors (17719215).

53157633 is a wasteful number, since it uses less digits than its factorization.

53157633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17719214.

The product of its digits is 28350, while the sum is 33.

The square root of 53157633 is about 7290.9281302177. The cubic root of 53157633 is about 376.0006059482. Note that the first 3 decimals are identical.

The spelling of 53157633 in words is "fifty-three million, one hundred fifty-seven thousand, six hundred thirty-three".