53923157 has 4 divisors (see below), whose sum is σ = 54280416. Its totient is φ = 53565900.

The previous prime is 53923139. The next prime is 53923183. The reversal of 53923157 is 75132935.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 53923157 - 2⁸ = 53922901 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 (53923117) 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, 178403 + ... + 178704.

It is an arithmetic number, because the mean of its divisors is an integer number (13570104).

Almost surely, 2^53923157 is an apocalyptic number.

It is an amenable number.

53923157 is a deficient number, since it is larger than the sum of its proper divisors (357259).

53923157 is a wasteful number, since it uses less digits than its factorization.

53923157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357258.

The product of its digits is 28350, while the sum is 35.

The square root of 53923157 is about 7343.2388630631. The cubic root of 53923157 is about 377.7969407587.

The spelling of 53923157 in words is "fifty-three million, nine hundred twenty-three thousand, one hundred fifty-seven".