52021506 has 16 divisors (see below), whose sum is σ = 109519200. Its totient is φ = 16427808.

The previous prime is 52021493. The next prime is 52021511. The reversal of 52021506 is 60512025.

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, 228051 + ... + 228278.

It is an arithmetic number, because the mean of its divisors is an integer number (6844950).

Almost surely, 2^52021506 is an apocalyptic number.

52021506 is an abundant number, since it is smaller than the sum of its proper divisors (57497694).

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

52021506 is a wasteful number, since it uses less digits than its factorization.

52021506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456353.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 52021506 is about 7212.5935695837. The cubic root of 52021506 is about 373.3025646057.

The spelling of 52021506 in words is "fifty-two million, twenty-one thousand, five hundred six".