53157999 has 8 divisors (see below), whose sum is σ = 71187760. Its totient is φ = 35283456.

The previous prime is 53157961. The next prime is 53158051. The reversal of 53157999 is 99975135.

53157999 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53157999 - 2⁸ = 53157743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53157959) 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 7 ways as a sum of consecutive naturals, for example, 38002 + ... + 39375.

It is an arithmetic number, because the mean of its divisors is an integer number (8898470).

Almost surely, 2^53157999 is an apocalyptic number.

53157999 is a deficient number, since it is larger than the sum of its proper divisors (18029761).

53157999 is a wasteful number, since it uses less digits than its factorization.

53157999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77609.

The product of its digits is 382725, while the sum is 48.

The square root of 53157999 is about 7290.9532298596. The cubic root of 53157999 is about 376.0014688904.

The spelling of 53157999 in words is "fifty-three million, one hundred fifty-seven thousand, nine hundred ninety-nine".