2557485 has 48 divisors (see below), whose sum is σ = 5301504. Its totient is φ = 1115136.

The previous prime is 2557453. The next prime is 2557501. The reversal of 2557485 is 5847552.

It is a happy number.

2557485 is a `hidden beast` number, since 2 + 5 + 574 + 85 = 666.

It is not a de Polignac number, because 2557485 - 2⁵ = 2557453 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7069 + ... + 7421.

It is an arithmetic number, because the mean of its divisors is an integer number (110448).

2^2557485 is an apocalyptic number.

It is an amenable number.

2557485 is an abundant number, since it is smaller than the sum of its proper divisors (2744019).

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

2557485 is a wasteful number, since it uses less digits than its factorization.

2557485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394 (or 391 counting only the distinct ones).

The product of its digits is 56000, while the sum is 36.

The square root of 2557485 is about 1599.2138693746. The cubic root of 2557485 is about 136.7532632487.

The spelling of 2557485 in words is "two million, five hundred fifty-seven thousand, four hundred eighty-five".