52091790 has 16 divisors (see below), whose sum is σ = 125020368. Its totient is φ = 13891136.

The previous prime is 52091783. The next prime is 52091797. The reversal of 52091790 is 9719025.

It is an interprime number because it is at equal distance from previous prime (52091783) and next prime (52091797).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52091797) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 868167 + ... + 868226.

It is an arithmetic number, because the mean of its divisors is an integer number (7813773).

Almost surely, 2^52091790 is an apocalyptic number.

52091790 is an abundant number, since it is smaller than the sum of its proper divisors (72928578).

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

52091790 is a wasteful number, since it uses less digits than its factorization.

52091790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1736403.

The product of its (nonzero) digits is 5670, while the sum is 33.

The square root of 52091790 is about 7217.4642361428. The cubic root of 52091790 is about 373.4706065839.

The spelling of 52091790 in words is "fifty-two million, ninety-one thousand, seven hundred ninety".