625216506453 has 24 divisors (see below), whose sum is σ = 1125931025856. Its totient is φ = 324787795200.

The previous prime is 625216506451. The next prime is 625216506457. The reversal of 625216506453 is 354605612526.

625216506453 is a `hidden beast` number, since 6 + 2 + 521 + 65 + 0 + 64 + 5 + 3 = 666.

It is not a de Polignac number, because 625216506453 - 2¹ = 625216506451 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 625216506399 and 625216506408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625216506451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 451093468 + ... + 451094853.

It is an arithmetic number, because the mean of its divisors is an integer number (46913792744).

Almost surely, 2^625216506453 is an apocalyptic number.

625216506453 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

It is an amenable number.

625216506453 is a deficient number, since it is larger than the sum of its proper divisors (500714519403).

625216506453 is a wasteful number, since it uses less digits than its factorization.

625216506453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902188345 (or 902188342 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 45.

The spelling of 625216506453 in words is "six hundred twenty-five billion, two hundred sixteen million, five hundred six thousand, four hundred fifty-three".