53628431 has 8 divisors (see below), whose sum is σ = 56540400. Its totient is φ = 50725440.

The previous prime is 53628413. The next prime is 53628559. The reversal of 53628431 is 13482635.

53628431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 53628431 - 2¹⁴ = 53612047 is a prime.

It is a super-2 number, since 2×53628431² = 5752017223043522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53628401) 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 7 ways as a sum of consecutive naturals, for example, 12605 + ... + 16313.

It is an arithmetic number, because the mean of its divisors is an integer number (7067550).

Almost surely, 2^53628431 is an apocalyptic number.

53628431 is a deficient number, since it is larger than the sum of its proper divisors (2911969).

53628431 is a wasteful number, since it uses less digits than its factorization.

53628431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4489.

The product of its digits is 17280, while the sum is 32.

The square root of 53628431 is about 7323.1435190088. The cubic root of 53628431 is about 377.1073788790.

The spelling of 53628431 in words is "fifty-three million, six hundred twenty-eight thousand, four hundred thirty-one".