2625457 has 4 divisors (see below), whose sum is σ = 2716020. Its totient is φ = 2534896.

The previous prime is 2625449. The next prime is 2625481. The reversal of 2625457 is 7545262.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 505521 + 2119936 = 711^2 + 1456^2 .

It is a cyclic number.

It is not a de Polignac number, because 2625457 - 2³ = 2625449 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a d-powerful number, because it can be written as 2¹⁷ + 6² + 2¹⁹ + 5³ + 4 + 5⁹ + 7⁵ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2625487) 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, 45238 + ... + 45295.

It is an arithmetic number, because the mean of its divisors is an integer number (679005).

2^2625457 is an apocalyptic number.

It is an amenable number.

2625457 is a deficient number, since it is larger than the sum of its proper divisors (90563).

2625457 is an equidigital number, since it uses as much as digits as its factorization.

2625457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90562.

The product of its digits is 16800, while the sum is 31.

The square root of 2625457 is about 1620.3262017261. The cubic root of 2625457 is about 137.9542136139.

The spelling of 2625457 in words is "two million, six hundred twenty-five thousand, four hundred fifty-seven".