2257546725 has 36 divisors (see below), whose sum is σ = 4621165536. Its totient is φ = 1032020640.

The previous prime is 2257546721. The next prime is 2257546757. The reversal of 2257546725 is 5276457522.

2257546725 is a `hidden beast` number, since 2 + 2 + 575 + 4 + 6 + 72 + 5 = 666.

It is not a de Polignac number, because 2257546725 - 2² = 2257546721 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2257546721) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 715107 + ... + 718256.

Almost surely, 2^2257546725 is an apocalyptic number.

2257546725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2257546725 is an abundant number, since it is smaller than the sum of its proper divisors (2363618811).

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

2257546725 is a wasteful number, since it uses less digits than its factorization.

2257546725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1433386 (or 1433378 counting only the distinct ones).

The product of its digits is 1176000, while the sum is 45.

The square root of 2257546725 is about 47513.6477761916. The cubic root of 2257546725 is about 1311.8341003067.

The spelling of 2257546725 in words is "two billion, two hundred fifty-seven million, five hundred forty-six thousand, seven hundred twenty-five".