53170631 has 4 divisors (see below), whose sum is σ = 53201064. Its totient is φ = 53140200.

The previous prime is 53170627. The next prime is 53170633. The reversal of 53170631 is 13607135.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53170631 - 2² = 53170627 is a prime.

It is a super-2 number, since 2×53170631² = 5654232001876322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53170631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53170633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12425 + ... + 16146.

It is an arithmetic number, because the mean of its divisors is an integer number (13300266).

Almost surely, 2^53170631 is an apocalyptic number.

53170631 is a deficient number, since it is larger than the sum of its proper divisors (30433).

53170631 is a wasteful number, since it uses less digits than its factorization.

53170631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30432.

The product of its (nonzero) digits is 1890, while the sum is 26.

The square root of 53170631 is about 7291.8194574468. The cubic root of 53170631 is about 376.0312497605.

Adding to 53170631 its reverse (13607135), we get a palindrome (66777766).

The spelling of 53170631 in words is "fifty-three million, one hundred seventy thousand, six hundred thirty-one".