2545604172 has 30 divisors (see below), whose sum is σ = 6654712988. Its totient is φ = 848534616.

The previous prime is 2545604167. The next prime is 2545604227. The reversal of 2545604172 is 2714065452.

It is a happy number.

2545604172 is a `hidden beast` number, since 2 + 5 + 45 + 604 + 1 + 7 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 3928078 + ... + 3928725.

Almost surely, 2^2545604172 is an apocalyptic number.

It is an amenable number.

2545604172 is an abundant number, since it is smaller than the sum of its proper divisors (4109108816).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2545604172 is a wasteful number, since it uses less digits than its factorization.

2545604172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7856819 (or 7856808 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The square root of 2545604172 is about 50453.9807349232. The cubic root of 2545604172 is about 1365.4117149548.

The spelling of 2545604172 in words is "two billion, five hundred forty-five million, six hundred four thousand, one hundred seventy-two".