52652421 has 12 divisors (see below), whose sum is σ = 76273548. Its totient is φ = 35000064.

The previous prime is 52652329. The next prime is 52652441. The reversal of 52652421 is 12425625.

52652421 is a `hidden beast` number, since 5 + 2 + 652 + 4 + 2 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 28740321 + 23912100 = 5361^2 + 4890^2 .

It is not a de Polignac number, because 52652421 - 2⁷ = 52652293 is a prime.

It is a super-2 number, since 2×52652421² = 5544554874322482, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52652441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5110 + ... + 11463.

It is an arithmetic number, because the mean of its divisors is an integer number (6356129).

Almost surely, 2^52652421 is an apocalyptic number.

It is an amenable number.

52652421 is a deficient number, since it is larger than the sum of its proper divisors (23621127).

52652421 is a wasteful number, since it uses less digits than its factorization.

52652421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16932 (or 16929 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 52652421 is about 7256.1987982690. The cubic root of 52652421 is about 374.8056379464.

The spelling of 52652421 in words is "fifty-two million, six hundred fifty-two thousand, four hundred twenty-one".