52485990 has 16 divisors (see below), whose sum is σ = 125966448. Its totient is φ = 13996256.

The previous prime is 52485989. The next prime is 52486003. The reversal of 52485990 is 9958425.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 874737 + ... + 874796.

It is an arithmetic number, because the mean of its divisors is an integer number (7872903).

Almost surely, 2^52485990 is an apocalyptic number.

52485990 is an abundant number, since it is smaller than the sum of its proper divisors (73480458).

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

52485990 is a wasteful number, since it uses less digits than its factorization.

52485990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1749543.

The product of its (nonzero) digits is 129600, while the sum is 42.

The square root of 52485990 is about 7244.7215267393. The cubic root of 52485990 is about 374.4103087462.

The spelling of 52485990 in words is "fifty-two million, four hundred eighty-five thousand, nine hundred ninety".