52221004 has 12 divisors (see below), whose sum is σ = 99694728. Its totient is φ = 23736800.

The previous prime is 52220999. The next prime is 52221011. The reversal of 52221004 is 40012225.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 593377 + ... + 593464.

It is an arithmetic number, because the mean of its divisors is an integer number (8307894).

Almost surely, 2^52221004 is an apocalyptic number.

It is an amenable number.

52221004 is a deficient number, since it is larger than the sum of its proper divisors (47473724).

52221004 is a wasteful number, since it uses less digits than its factorization.

52221004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1186856 (or 1186854 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 52221004 is about 7226.4101738000. The cubic root of 52221004 is about 373.7791503086.

Adding to 52221004 its reverse (40012225), we get a palindrome (92233229).

It can be divided in two parts, 5222 and 1004, that added together give a palindrome (6226).

The spelling of 52221004 in words is "fifty-two million, two hundred twenty-one thousand, four".