53997878 has 16 divisors (see below), whose sum is σ = 88577280. Its totient is φ = 24484200.

The previous prime is 53997833. The next prime is 53997883. The reversal of 53997878 is 87879935.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6863 + ... + 12453.

It is an arithmetic number, because the mean of its divisors is an integer number (5536080).

Almost surely, 2^53997878 is an apocalyptic number.

53997878 is a deficient number, since it is larger than the sum of its proper divisors (34579402).

53997878 is a wasteful number, since it uses less digits than its factorization.

53997878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6043.

The product of its digits is 3810240, while the sum is 56.

The square root of 53997878 is about 7348.3248431190. The cubic root of 53997878 is about 377.9713638805.

The spelling of 53997878 in words is "fifty-three million, nine hundred ninety-seven thousand, eight hundred seventy-eight".