2660625 has 60 divisors (see below), whose sum is σ = 5360784. Its totient is φ = 1260000.

The previous prime is 2660621. The next prime is 2660639. The reversal of 2660625 is 5260662.

It is not a de Polignac number, because 2660625 - 2² = 2660621 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2660621) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 61854 + ... + 61896.

2^2660625 is an apocalyptic number.

2660625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2660625 is an abundant number, since it is smaller than the sum of its proper divisors (2700159).

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

2660625 is a wasteful number, since it uses less digits than its factorization.

2660625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80 (or 62 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 2660625 is about 1631.1422378199. The cubic root of 2660625 is about 138.5674492377.

The spelling of 2660625 in words is "two million, six hundred sixty thousand, six hundred twenty-five".