53173631 has 8 divisors (see below), whose sum is σ = 63412224. Its totient is φ = 43595640.

The previous prime is 53173621. The next prime is 53173643. The reversal of 53173631 is 13637135.

It is a happy number.

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 53173631 - 2⁶ = 53173567 is a prime.

It is a super-2 number, since 2×53173631² = 5654870067448322, 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 = 53173594 and 53173603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53173621) 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, 164975 + ... + 165296.

It is an arithmetic number, because the mean of its divisors is an integer number (7926528).

Almost surely, 2^53173631 is an apocalyptic number.

53173631 is a deficient number, since it is larger than the sum of its proper divisors (10238593).

53173631 is a wasteful number, since it uses less digits than its factorization.

53173631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330301.

The product of its digits is 5670, while the sum is 29.

The square root of 53173631 is about 7292.0251645205. The cubic root of 53173631 is about 376.0383217883.

The spelling of 53173631 in words is "fifty-three million, one hundred seventy-three thousand, six hundred thirty-one".