52422987 has 4 divisors (see below), whose sum is σ = 69897320. Its totient is φ = 34948656.

The previous prime is 52422967. The next prime is 52423027. The reversal of 52422987 is 78922425.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 52422987 - 2⁷ = 52422859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52422947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8737162 + ... + 8737167.

It is an arithmetic number, because the mean of its divisors is an integer number (17474330).

Almost surely, 2^52422987 is an apocalyptic number.

52422987 is a deficient number, since it is larger than the sum of its proper divisors (17474333).

52422987 is a wasteful number, since it uses less digits than its factorization.

52422987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17474332.

The product of its digits is 80640, while the sum is 39.

The square root of 52422987 is about 7240.3720208288. The cubic root of 52422987 is about 374.2604375295.

The spelling of 52422987 in words is "fifty-two million, four hundred twenty-two thousand, nine hundred eighty-seven".