624504972281 has 2 divisors, whose sum is σ = 624504972282. Its totient is φ = 624504972280.

The previous prime is 624504972233. The next prime is 624504972317. The reversal of 624504972281 is 182279405426.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 476122080256 + 148382892025 = 690016^2 + 385205^2 .

It is a cyclic number.

It is not a de Polignac number, because 624504972281 - 2²⁶ = 624437863417 is a prime.

It is a super-2 number, since 2×624504972281² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (624504972211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312252486140 + 312252486141.

It is an arithmetic number, because the mean of its divisors is an integer number (312252486141).

Almost surely, 2^624504972281 is an apocalyptic number.

It is an amenable number.

624504972281 is a deficient number, since it is larger than the sum of its proper divisors (1).

624504972281 is an equidigital number, since it uses as much as digits as its factorization.

624504972281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1935360, while the sum is 50.

The spelling of 624504972281 in words is "six hundred twenty-four billion, five hundred four million, nine hundred seventy-two thousand, two hundred eighty-one".