53220004631 has 2 divisors, whose sum is σ = 53220004632. Its totient is φ = 53220004630.

The previous prime is 53220004601. The next prime is 53220004667. The reversal of 53220004631 is 13640002235.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53220004631 - 2²² = 53215810327 is a prime.

It is a super-2 number, since 2×53220004631² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 53220004631.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53220004601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26610002315 + 26610002316.

It is an arithmetic number, because the mean of its divisors is an integer number (26610002316).

Almost surely, 2^53220004631 is an apocalyptic number.

53220004631 is a deficient number, since it is larger than the sum of its proper divisors (1).

53220004631 is an equidigital number, since it uses as much as digits as its factorization.

53220004631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 53220004631 its reverse (13640002235), we get a palindrome (66860006866).

The spelling of 53220004631 in words is "fifty-three billion, two hundred twenty million, four thousand, six hundred thirty-one".