52621679 has 8 divisors (see below), whose sum is σ = 57459072. Its totient is φ = 47793240.

The previous prime is 52621609. The next prime is 52621691. The reversal of 52621679 is 97612625.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 52621679 - 2²⁰ = 51573103 is a prime.

It is a super-2 number, since 2×52621679² = 5538082201558082, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52621609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18272 + ... + 20954.

It is an arithmetic number, because the mean of its divisors is an integer number (7182384).

Almost surely, 2^52621679 is an apocalyptic number.

52621679 is a deficient number, since it is larger than the sum of its proper divisors (4837393).

52621679 is a wasteful number, since it uses less digits than its factorization.

52621679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4477.

The product of its digits is 45360, while the sum is 38.

The square root of 52621679 is about 7254.0801622259. The cubic root of 52621679 is about 374.7326782235.

The spelling of 52621679 in words is "fifty-two million, six hundred twenty-one thousand, six hundred seventy-nine".