53449653231 has 24 divisors (see below), whose sum is σ = 84196374080. Its totient is φ = 32475733056.

The previous prime is 53449653227. The next prime is 53449653259. The reversal of 53449653231 is 13235694435.

53449653231 is a `hidden beast` number, since 534 + 4 + 96 + 5 + 3 + 23 + 1 = 666.

It is not a de Polignac number, because 53449653231 - 2² = 53449653227 is a prime.

It is a super-2 number, since 2×53449653231² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53449653211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2882116 + ... + 2900601.

Almost surely, 2^53449653231 is an apocalyptic number.

53449653231 is a deficient number, since it is larger than the sum of its proper divisors (30746720849).

53449653231 is a wasteful number, since it uses less digits than its factorization.

53449653231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5782815 (or 5782812 counting only the distinct ones).

The product of its digits is 1166400, while the sum is 45.

The spelling of 53449653231 in words is "fifty-three billion, four hundred forty-nine million, six hundred fifty-three thousand, two hundred thirty-one".