625552245423 has 24 divisors (see below), whose sum is σ = 1049586495776. Its totient is φ = 351598449600.

The previous prime is 625552245397. The next prime is 625552245433. The reversal of 625552245423 is 324542255526.

It is a happy number.

625552245423 is a `hidden beast` number, since 6 + 2 + 5 + 552 + 24 + 54 + 23 = 666.

625552245423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-625552245423 is a prime.

It is a super-2 number, since 2×625552245423² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625552245433) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81384688 + ... + 81392373.

Almost surely, 2^625552245423 is an apocalyptic number.

625552245423 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

625552245423 is a deficient number, since it is larger than the sum of its proper divisors (424034250353).

625552245423 is a wasteful number, since it uses less digits than its factorization.

625552245423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162777135 (or 162777132 counting only the distinct ones).

The product of its digits is 2880000, while the sum is 45.

The spelling of 625552245423 in words is "six hundred twenty-five billion, five hundred fifty-two million, two hundred forty-five thousand, four hundred twenty-three".