53352631 has 4 divisors (see below), whose sum is σ = 54794632. Its totient is φ = 51910632.

The previous prime is 53352599. The next prime is 53352641. The reversal of 53352631 is 13625335.

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 53352631 - 2⁵ = 53352599 is a prime.

It is a super-2 number, since 2×53352631² = 5693006469244322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 53352631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53352641) 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, 720945 + ... + 721018.

It is an arithmetic number, because the mean of its divisors is an integer number (13698658).

Almost surely, 2^53352631 is an apocalyptic number.

53352631 is a deficient number, since it is larger than the sum of its proper divisors (1442001).

53352631 is a wasteful number, since it uses less digits than its factorization.

53352631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1442000.

The product of its digits is 8100, while the sum is 28.

The square root of 53352631 is about 7304.2885348266. The cubic root of 53352631 is about 376.4598055769.

Adding to 53352631 its reverse (13625335), we get a palindrome (66977966).

The spelling of 53352631 in words is "fifty-three million, three hundred fifty-two thousand, six hundred thirty-one".