53919879 has 16 divisors (see below), whose sum is σ = 79314144. Its totient is φ = 32371200.

The previous prime is 53919863. The next prime is 53919883. The reversal of 53919879 is 97891935.

It is a happy number.

It is not a de Polignac number, because 53919879 - 2⁴ = 53919863 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53919809) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15262 + ... + 18459.

It is an arithmetic number, because the mean of its divisors is an integer number (4957134).

Almost surely, 2^53919879 is an apocalyptic number.

53919879 is a deficient number, since it is larger than the sum of its proper divisors (25394265).

53919879 is a wasteful number, since it uses less digits than its factorization.

53919879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33778.

The product of its digits is 612360, while the sum is 51.

The square root of 53919879 is about 7343.0156611572. The cubic root of 53919879 is about 377.7892851518.

The spelling of 53919879 in words is "fifty-three million, nine hundred nineteen thousand, eight hundred seventy-nine".