52250990 has 64 divisors (see below), whose sum is σ = 106686720. Its totient is φ = 18263040.

The previous prime is 52250941. The next prime is 52251029. The reversal of 52250990 is 9905225.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 538622 + ... + 538718.

It is an arithmetic number, because the mean of its divisors is an integer number (1666980).

Almost surely, 2^52250990 is an apocalyptic number.

52250990 is an abundant number, since it is smaller than the sum of its proper divisors (54435730).

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

52250990 is a wasteful number, since it uses less digits than its factorization.

52250990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257.

The product of its (nonzero) digits is 8100, while the sum is 32.

The square root of 52250990 is about 7228.4846268080. The cubic root of 52250990 is about 373.8506796176.

The spelling of 52250990 in words is "fifty-two million, two hundred fifty thousand, nine hundred ninety".