2557012 has 6 divisors (see below), whose sum is σ = 4474778. Its totient is φ = 1278504.

The previous prime is 2557007. The next prime is 2557013. The reversal of 2557012 is 2107552.

It can be written as a sum of positive squares in only one way, i.e., 2515396 + 41616 = 1586^2 + 204^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2557013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 319623 + ... + 319630.

2^2557012 is an apocalyptic number.

It is an amenable number.

2557012 is a deficient number, since it is larger than the sum of its proper divisors (1917766).

2557012 is a wasteful number, since it uses less digits than its factorization.

2557012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639257 (or 639255 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 22.

The square root of 2557012 is about 1599.0659773755. The cubic root of 2557012 is about 136.7448320123.

The spelling of 2557012 in words is "two million, five hundred fifty-seven thousand, twelve".