52221788 has 6 divisors (see below), whose sum is σ = 91388136. Its totient is φ = 26110892.

The previous prime is 52221769. The next prime is 52221803. The reversal of 52221788 is 88712225.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6527720 + ... + 6527727.

It is an arithmetic number, because the mean of its divisors is an integer number (15231356).

Almost surely, 2^52221788 is an apocalyptic number.

It is an amenable number.

52221788 is a deficient number, since it is larger than the sum of its proper divisors (39166348).

52221788 is a wasteful number, since it uses less digits than its factorization.

52221788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13055451 (or 13055449 counting only the distinct ones).

The product of its digits is 17920, while the sum is 35.

The square root of 52221788 is about 7226.4644190641. The cubic root of 52221788 is about 373.7810208291.

The spelling of 52221788 in words is "fifty-two million, two hundred twenty-one thousand, seven hundred eighty-eight".