625636145255401 has 48 divisors (see below), whose sum is σ = 769653372192768. Its totient is φ = 506255649177600.

The previous prime is 625636145255399. The next prime is 625636145255413. The reversal of 625636145255401 is 104552541636526.

It is not a de Polignac number, because 625636145255401 - 2¹ = 625636145255399 is a prime.

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (625636145255101) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 669218976 + ... + 670153198.

It is an arithmetic number, because the mean of its divisors is an integer number (16034445254016).

Almost surely, 2^{625636145255401} is an apocalyptic number.

It is an amenable number.

625636145255401 is a deficient number, since it is larger than the sum of its proper divisors (144017226937367).

625636145255401 is a wasteful number, since it uses less digits than its factorization.

625636145255401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 945062 (or 945055 counting only the distinct ones).

The product of its (nonzero) digits is 25920000, while the sum is 55.

The spelling of 625636145255401 in words is "six hundred twenty-five trillion, six hundred thirty-six billion, one hundred forty-five million, two hundred fifty-five thousand, four hundred one".