52421530 has 32 divisors (see below), whose sum is σ = 108161280. Its totient is φ = 17919360.

The previous prime is 52421521. The next prime is 52421549. The reversal of 52421530 is 3512425.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27715 + ... + 29545.

It is an arithmetic number, because the mean of its divisors is an integer number (3380040).

Almost surely, 2^52421530 is an apocalyptic number.

52421530 is an abundant number, since it is smaller than the sum of its proper divisors (55739750).

52421530 is a wasteful number, since it uses less digits than its factorization.

52421530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2254.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 52421530 is about 7240.2714037528. The cubic root of 52421530 is about 374.2569702051.

Adding to 52421530 its reverse (3512425), we get a palindrome (55933955).

The spelling of 52421530 in words is "fifty-two million, four hundred twenty-one thousand, five hundred thirty".