53920551 has 16 divisors (see below), whose sum is σ = 72806400. Its totient is φ = 35494368.

The previous prime is 53920547. The next prime is 53920553. The reversal of 53920551 is 15502935.

It is not a de Polignac number, because 53920551 - 2² = 53920547 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53920553) 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, 112330 + ... + 112808.

It is an arithmetic number, because the mean of its divisors is an integer number (4550400).

Almost surely, 2^53920551 is an apocalyptic number.

53920551 is a deficient number, since it is larger than the sum of its proper divisors (18885849).

53920551 is a wasteful number, since it uses less digits than its factorization.

53920551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878.

The product of its (nonzero) digits is 6750, while the sum is 30.

The square root of 53920551 is about 7343.0614187817. The cubic root of 53920551 is about 377.7908545999.

The spelling of 53920551 in words is "fifty-three million, nine hundred twenty thousand, five hundred fifty-one".