53971031 has 8 divisors (see below), whose sum is σ = 56627328. Its totient is φ = 51372000.

The previous prime is 53971009. The next prime is 53971033. The reversal of 53971031 is 13017935.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53971031 is a prime.

It is a super-2 number, since 2×53971031² = 5825744374405922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 53970985 and 53971003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53971033) 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, 12380 + ... + 16161.

It is an arithmetic number, because the mean of its divisors is an integer number (7078416).

Almost surely, 2^53971031 is an apocalyptic number.

53971031 is a deficient number, since it is larger than the sum of its proper divisors (2656297).

53971031 is a wasteful number, since it uses less digits than its factorization.

53971031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28633.

The product of its (nonzero) digits is 2835, while the sum is 29.

The square root of 53971031 is about 7346.4978731366. The cubic root of 53971031 is about 377.9087127804.

Adding to 53971031 its reverse (13017935), we get a palindrome (66988966).

The spelling of 53971031 in words is "fifty-three million, nine hundred seventy-one thousand, thirty-one".