53111562431 has 4 divisors (see below), whose sum is σ = 53126745000. Its totient is φ = 53096379864.

The previous prime is 53111562409. The next prime is 53111562473. The reversal of 53111562431 is 13426511135.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53111562431 is a prime.

It is a super-2 number, since 2×53111562431² (a number of 22 digits) 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 (53111582431) 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 3 ways as a sum of consecutive naturals, for example, 7586036 + ... + 7593033.

It is an arithmetic number, because the mean of its divisors is an integer number (13281686250).

Almost surely, 2^53111562431 is an apocalyptic number.

53111562431 is a deficient number, since it is larger than the sum of its proper divisors (15182569).

53111562431 is a wasteful number, since it uses less digits than its factorization.

53111562431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15182568.

The product of its digits is 10800, while the sum is 32.

The spelling of 53111562431 in words is "fifty-three billion, one hundred eleven million, five hundred sixty-two thousand, four hundred thirty-one".