53605631 has 8 divisors (see below), whose sum is σ = 57492720. Its totient is φ = 49825152.

The previous prime is 53605621. The next prime is 53605681. The reversal of 53605631 is 13650635.

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 53605631 - 2⁶ = 53605567 is a prime.

It is a super-2 number, since 2×53605631² = 5747127349816322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53605594 and 53605603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53605621) 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, 25610 + ... + 27623.

It is an arithmetic number, because the mean of its divisors is an integer number (7186590).

Almost surely, 2^53605631 is an apocalyptic number.

53605631 is a deficient number, since it is larger than the sum of its proper divisors (3887089).

53605631 is a wasteful number, since it uses less digits than its factorization.

53605631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53305.

The product of its (nonzero) digits is 8100, while the sum is 29.

The square root of 53605631 is about 7321.5866449834. The cubic root of 53605631 is about 377.0539292016.

The spelling of 53605631 in words is "fifty-three million, six hundred five thousand, six hundred thirty-one".