53147631 has 8 divisors (see below), whose sum is σ = 70963120. Its totient is φ = 35381952.

The previous prime is 53147599. The next prime is 53147657. The reversal of 53147631 is 13674135.

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

It is not a de Polignac number, because 53147631 - 2⁵ = 53147599 is a prime.

It is a super-2 number, since 2×53147631² = 5649341361824322, 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 (53147131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9886 + ... + 14283.

It is an arithmetic number, because the mean of its divisors is an integer number (8870390).

Almost surely, 2^53147631 is an apocalyptic number.

53147631 is a deficient number, since it is larger than the sum of its proper divisors (17815489).

53147631 is a wasteful number, since it uses less digits than its factorization.

53147631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24905.

The product of its digits is 7560, while the sum is 30.

The square root of 53147631 is about 7290.2421770473. The cubic root of 53147631 is about 375.9770220416.

The spelling of 53147631 in words is "fifty-three million, one hundred forty-seven thousand, six hundred thirty-one".