2557672 has 16 divisors (see below), whose sum is σ = 5164740. Its totient is φ = 1180416.

The previous prime is 2557663. The next prime is 2557673. The reversal of 2557672 is 2767552.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2114116 + 443556 = 1454^2 + 666^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2557673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12193 + ... + 12400.

2^2557672 is an apocalyptic number.

It is an amenable number.

2557672 is an abundant number, since it is smaller than the sum of its proper divisors (2607068).

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

2557672 is a wasteful number, since it uses less digits than its factorization.

2557672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24612 (or 24608 counting only the distinct ones).

The product of its digits is 29400, while the sum is 34.

The square root of 2557672 is about 1599.2723345322. The cubic root of 2557672 is about 136.7565962414.

The spelling of 2557672 in words is "two million, five hundred fifty-seven thousand, six hundred seventy-two".