625342220145 has 24 divisors (see below), whose sum is σ = 1113221829096. Its totient is φ = 324501907968.

The previous prime is 625342220119. The next prime is 625342220149. The reversal of 625342220145 is 541022243526.

625342220145 is a `hidden beast` number, since 6 + 25 + 3 + 422 + 201 + 4 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 197186619249 + 428155600896 = 444057^2 + 654336^2 .

It is not a de Polignac number, because 625342220145 - 2⁶ = 625342220081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (625342220149) 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, 187788792 + ... + 187792121.

It is an arithmetic number, because the mean of its divisors is an integer number (46384242879).

Almost surely, 2^625342220145 is an apocalyptic number.

It is an amenable number.

625342220145 is a deficient number, since it is larger than the sum of its proper divisors (487879608951).

625342220145 is a wasteful number, since it uses less digits than its factorization.

625342220145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375580961 (or 375580958 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

The spelling of 625342220145 in words is "six hundred twenty-five billion, three hundred forty-two million, two hundred twenty thousand, one hundred forty-five".