2557151 has 4 divisors (see below), whose sum is σ = 2589600. Its totient is φ = 2524704.

The previous prime is 2557127. The next prime is 2557169. The reversal of 2557151 is 1517552.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2557151 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2557151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2557111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16106 + ... + 16263.

It is an arithmetic number, because the mean of its divisors is an integer number (647400).

2^2557151 is an apocalyptic number.

2557151 is a deficient number, since it is larger than the sum of its proper divisors (32449).

2557151 is an equidigital number, since it uses as much as digits as its factorization.

2557151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32448.

The product of its digits is 1750, while the sum is 26.

The square root of 2557151 is about 1599.1094396570. The cubic root of 2557151 is about 136.7473097985.

The spelling of 2557151 in words is "two million, five hundred fifty-seven thousand, one hundred fifty-one".