53656631 has 8 divisors (see below), whose sum is σ = 63988224. Its totient is φ = 43991640.

The previous prime is 53656621. The next prime is 53656633. The reversal of 53656631 is 13665635.

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

It is not a de Polignac number, because 53656631 - 2¹⁰ = 53655607 is a prime.

It is a super-2 number, since 2×53656631² = 5758068100540322, 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 = 53656591 and 53656600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53656633) 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, 166475 + ... + 166796.

It is an arithmetic number, because the mean of its divisors is an integer number (7998528).

Almost surely, 2^53656631 is an apocalyptic number.

53656631 is a deficient number, since it is larger than the sum of its proper divisors (10331593).

53656631 is a wasteful number, since it uses less digits than its factorization.

53656631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333301.

The product of its digits is 48600, while the sum is 35.

The square root of 53656631 is about 7325.0686686201. The cubic root of 53656631 is about 377.1734667384.

The spelling of 53656631 in words is "fifty-three million, six hundred fifty-six thousand, six hundred thirty-one".