625225680101 has 12 divisors (see below), whose sum is σ = 687423280236. Its totient is φ = 568228393920.

The previous prime is 625225680091. The next prime is 625225680109. The reversal of 625225680101 is 101086522526.

It can be written as a sum of positive squares in 2 ways, for example, as 272833852225 + 352391827876 = 522335^2 + 593626^2 .

It is not a de Polignac number, because 625225680101 - 2¹⁰ = 625225679077 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625225680109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 284306 + ... + 1153811.

It is an arithmetic number, because the mean of its divisors is an integer number (57285273353).

Almost surely, 2^625225680101 is an apocalyptic number.

It is an amenable number.

625225680101 is a deficient number, since it is larger than the sum of its proper divisors (62197600135).

625225680101 is a wasteful number, since it uses less digits than its factorization.

625225680101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1441732 (or 1441721 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 38.

The spelling of 625225680101 in words is "six hundred twenty-five billion, two hundred twenty-five million, six hundred eighty thousand, one hundred one".