2557701 has 24 divisors (see below), whose sum is σ = 3982680. Its totient is φ = 1575936.

The previous prime is 2557697. The next prime is 2557729. The reversal of 2557701 is 1077552.

It can be written as a sum of positive squares in 4 ways, for example, as 1404225 + 1153476 = 1185^2 + 1074^2 .

It is not a de Polignac number, because 2557701 - 2² = 2557697 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2557741) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11055 + ... + 11283.

It is an arithmetic number, because the mean of its divisors is an integer number (165945).

2^2557701 is an apocalyptic number.

It is an amenable number.

2557701 is a deficient number, since it is larger than the sum of its proper divisors (1424979).

2557701 is a wasteful number, since it uses less digits than its factorization.

2557701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325 (or 322 counting only the distinct ones).

The product of its (nonzero) digits is 2450, while the sum is 27.

The square root of 2557701 is about 1599.2814011299. The cubic root of 2557701 is about 136.7571131081.

The spelling of 2557701 in words is "two million, five hundred fifty-seven thousand, seven hundred one".