625550172463 has 4 divisors (see below), whose sum is σ = 628825304448. Its totient is φ = 622275040480.

The previous prime is 625550172449. The next prime is 625550172551. The reversal of 625550172463 is 364271055526.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 625550172463 - 2²¹ = 625548075311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625550172763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1637565706 + ... + 1637566087.

It is an arithmetic number, because the mean of its divisors is an integer number (157206326112).

Almost surely, 2^625550172463 is an apocalyptic number.

625550172463 is a deficient number, since it is larger than the sum of its proper divisors (3275131985).

625550172463 is a wasteful number, since it uses less digits than its factorization.

625550172463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3275131984.

The product of its (nonzero) digits is 1512000, while the sum is 46.

The spelling of 625550172463 in words is "six hundred twenty-five billion, five hundred fifty million, one hundred seventy-two thousand, four hundred sixty-three".