53625631 has 4 divisors (see below), whose sum is σ = 54534600. Its totient is φ = 52716664.

The previous prime is 53625613. The next prime is 53625643. The reversal of 53625631 is 13652635.

53625631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 53625631 - 2⁷ = 53625503 is a prime.

It is a super-2 number, since 2×53625631² = 5751416600296322, 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 = 53625593 and 53625602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53625331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 454396 + ... + 454513.

It is an arithmetic number, because the mean of its divisors is an integer number (13633650).

Almost surely, 2^53625631 is an apocalyptic number.

53625631 is a deficient number, since it is larger than the sum of its proper divisors (908969).

53625631 is an equidigital number, since it uses as much as digits as its factorization.

53625631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 908968.

The product of its digits is 16200, while the sum is 31.

The square root of 53625631 is about 7322.9523417813. The cubic root of 53625631 is about 377.1008156996.

The spelling of 53625631 in words is "fifty-three million, six hundred twenty-five thousand, six hundred thirty-one".