2557195 has 4 divisors (see below), whose sum is σ = 3068640. Its totient is φ = 2045752.

The previous prime is 2557171. The next prime is 2557199. The reversal of 2557195 is 5917552.

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

It is a cyclic number.

It is not a de Polignac number, because 2557195 - 2⁷ = 2557067 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2557195.

It is not an unprimeable number, because it can be changed into a prime (2557199) 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, 255715 + ... + 255724.

It is an arithmetic number, because the mean of its divisors is an integer number (767160).

2^2557195 is an apocalyptic number.

2557195 is a deficient number, since it is larger than the sum of its proper divisors (511445).

2557195 is an equidigital number, since it uses as much as digits as its factorization.

2557195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511444.

The product of its digits is 15750, while the sum is 34.

The square root of 2557195 is about 1599.1231972553. The cubic root of 2557195 is about 136.7480941150.

The spelling of 2557195 in words is "two million, five hundred fifty-seven thousand, one hundred ninety-five".