53321061831 has 4 divisors (see below), whose sum is σ = 71094749112. Its totient is φ = 35547374552.

The previous prime is 53321061811. The next prime is 53321061839. The reversal of 53321061831 is 13816012335.

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

It is a cyclic number.

It is not a de Polignac number, because 53321061831 - 2²⁶ = 53253952967 is a prime.

It is a super-2 number, since 2×53321061831² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 53321061792 and 53321061801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53321061839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8886843636 + ... + 8886843641.

It is an arithmetic number, because the mean of its divisors is an integer number (17773687278).

Almost surely, 2^53321061831 is an apocalyptic number.

53321061831 is a deficient number, since it is larger than the sum of its proper divisors (17773687281).

53321061831 is a wasteful number, since it uses less digits than its factorization.

53321061831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17773687280.

The product of its (nonzero) digits is 12960, while the sum is 33.

The spelling of 53321061831 in words is "fifty-three billion, three hundred twenty-one million, sixty-one thousand, eight hundred thirty-one".