52629581 has 8 divisors (see below), whose sum is σ = 53396280. Its totient is φ = 51867648.

The previous prime is 52629559. The next prime is 52629607. The reversal of 52629581 is 18592625.

It can be written as a sum of positive squares in 4 ways, for example, as 4452100 + 48177481 = 2110^2 + 6941^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 52629581 - 2⁶ = 52629517 is a prime.

It is a super-2 number, since 2×52629581² = 5539745592471122, 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 (52623581) 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, 25085 + ... + 27101.

It is an arithmetic number, because the mean of its divisors is an integer number (6674535).

Almost surely, 2^52629581 is an apocalyptic number.

It is an amenable number.

52629581 is a deficient number, since it is larger than the sum of its proper divisors (766699).

52629581 is a wasteful number, since it uses less digits than its factorization.

52629581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2383.

The product of its digits is 43200, while the sum is 38.

The square root of 52629581 is about 7254.6248007736. The cubic root of 52629581 is about 374.7514346846.

The spelling of 52629581 in words is "fifty-two million, six hundred twenty-nine thousand, five hundred eighty-one".