52662639 has 4 divisors (see below), whose sum is σ = 70216856. Its totient is φ = 35108424.

The previous prime is 52662619. The next prime is 52662647. The reversal of 52662639 is 93626625.

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

It is not a de Polignac number, because 52662639 - 2⁸ = 52662383 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52662597 and 52662606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52662619) 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, 8777104 + ... + 8777109.

It is an arithmetic number, because the mean of its divisors is an integer number (17554214).

Almost surely, 2^52662639 is an apocalyptic number.

52662639 is a deficient number, since it is larger than the sum of its proper divisors (17554217).

52662639 is a wasteful number, since it uses less digits than its factorization.

52662639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17554216.

The product of its digits is 116640, while the sum is 39.

The square root of 52662639 is about 7256.9028517681. The cubic root of 52662639 is about 374.8298819490.

It can be divided in two parts, 52662 and 639, that added together give a triangular number (53301 = T₃₂₆).

The spelling of 52662639 in words is "fifty-two million, six hundred sixty-two thousand, six hundred thirty-nine".