53216030631 has 32 divisors (see below), whose sum is σ = 78062019840. Its totient is φ = 32096830976.

The previous prime is 53216030629. The next prime is 53216030653. The reversal of 53216030631 is 13603061235.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 53216030631 - 2¹ = 53216030629 is a prime.

It is a super-2 number, since 2×53216030631² (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 (53216030671) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 256480 + ... + 414986.

It is an arithmetic number, because the mean of its divisors is an integer number (2439438120).

Almost surely, 2^53216030631 is an apocalyptic number.

53216030631 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

53216030631 is a deficient number, since it is larger than the sum of its proper divisors (24845989209).

53216030631 is a wasteful number, since it uses less digits than its factorization.

53216030631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158783.

The product of its (nonzero) digits is 9720, while the sum is 30.

Adding to 53216030631 its reverse (13603061235), we get a palindrome (66819091866).

The spelling of 53216030631 in words is "fifty-three billion, two hundred sixteen million, thirty thousand, six hundred thirty-one".