53971431 has 8 divisors (see below), whose sum is σ = 72975744. Its totient is φ = 35474040.

The previous prime is 53971429. The next prime is 53971439. The reversal of 53971431 is 13417935.

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

It is not a de Polignac number, because 53971431 - 2¹ = 53971429 is a prime.

It is a super-2 number, since 2×53971431² = 5825830728375522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 53971392 and 53971401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53971439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126481 + ... + 126906.

It is an arithmetic number, because the mean of its divisors is an integer number (9121968).

Almost surely, 2^53971431 is an apocalyptic number.

53971431 is a deficient number, since it is larger than the sum of its proper divisors (19004313).

53971431 is a wasteful number, since it uses less digits than its factorization.

53971431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253461.

The product of its digits is 11340, while the sum is 33.

The square root of 53971431 is about 7346.5250969421. The cubic root of 53971431 is about 377.9096463869.

The spelling of 53971431 in words is "fifty-three million, nine hundred seventy-one thousand, four hundred thirty-one".