2512557 has 6 divisors (see below), whose sum is σ = 3629262. Its totient is φ = 1675032.

The previous prime is 2512553. The next prime is 2512561. The reversal of 2512557 is 7552152.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2512553) and next prime (2512561).

It can be written as a sum of positive squares in only one way, i.e., 2499561 + 12996 = 1581^2 + 114^2 .

It is not a de Polignac number, because 2512557 - 2² = 2512553 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2512557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2512553) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 139578 + ... + 139595.

It is an arithmetic number, because the mean of its divisors is an integer number (604877).

2^2512557 is an apocalyptic number.

It is an amenable number.

2512557 is a deficient number, since it is larger than the sum of its proper divisors (1116705).

2512557 is a wasteful number, since it uses less digits than its factorization.

2512557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279179 (or 279176 counting only the distinct ones).

The product of its digits is 3500, while the sum is 27.

The square root of 2512557 is about 1585.1047284012. The cubic root of 2512557 is about 135.9477343860.

The spelling of 2512557 in words is "two million, five hundred twelve thousand, five hundred fifty-seven".