52212987 has 12 divisors (see below), whose sum is σ = 75963160. Its totient is φ = 34557408.

The previous prime is 52212977. The next prime is 52212989. The reversal of 52212987 is 78921225.

52212987 is a `hidden beast` number, since 522 + 129 + 8 + 7 = 666.

It is not a de Polignac number, because 52212987 - 2¹⁰ = 52211963 is a prime.

It is a super-2 number, since 2×52212987² = 5452392022924338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52212989) 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, 19618 + ... + 22119.

Almost surely, 2^52212987 is an apocalyptic number.

52212987 is a deficient number, since it is larger than the sum of its proper divisors (23750173).

52212987 is a wasteful number, since it uses less digits than its factorization.

52212987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41882 (or 41879 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 52212987 is about 7225.8554510867. The cubic root of 52212987 is about 373.7600217295.

The spelling of 52212987 in words is "fifty-two million, two hundred twelve thousand, nine hundred eighty-seven".