2564172 has 36 divisors (see below), whose sum is σ = 6981520. Its totient is φ = 788832.

The previous prime is 2564171. The next prime is 2564203. The reversal of 2564172 is 2714652.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (2564171) 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, 2272 + ... + 3207.

2^2564172 is an apocalyptic number.

It is an amenable number.

2564172 is an abundant number, since it is smaller than the sum of its proper divisors (4417348).

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

2564172 is a wasteful number, since it uses less digits than its factorization.

2564172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5502 (or 5497 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 2564172 is about 1601.3032192561. The cubic root of 2564172 is about 136.8723481065.

The spelling of 2564172 in words is "two million, five hundred sixty-four thousand, one hundred seventy-two".