53261790 has 32 divisors (see below), whose sum is σ = 133387776. Its totient is φ = 13585440.

The previous prime is 53261743. The next prime is 53261809. The reversal of 53261790 is 9716235.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37906 + ... + 39285.

It is an arithmetic number, because the mean of its divisors is an integer number (4168368).

Almost surely, 2^53261790 is an apocalyptic number.

53261790 is an abundant number, since it is smaller than the sum of its proper divisors (80125986).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53261790 is a wasteful number, since it uses less digits than its factorization.

53261790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77224.

The product of its (nonzero) digits is 11340, while the sum is 33.

The square root of 53261790 is about 7298.0675524415. The cubic root of 53261790 is about 376.2460241005.

The spelling of 53261790 in words is "fifty-three million, two hundred sixty-one thousand, seven hundred ninety".