2557953707 has 4 divisors (see below), whose sum is σ = 2593981296. Its totient is φ = 2521926120.

The previous prime is 2557953703. The next prime is 2557953731. The reversal of 2557953707 is 7073597552.

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 2557953707 - 2² = 2557953703 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (2557953701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18013688 + ... + 18013829.

It is an arithmetic number, because the mean of its divisors is an integer number (648495324).

Almost surely, 2^2557953707 is an apocalyptic number.

2557953707 is a deficient number, since it is larger than the sum of its proper divisors (36027589).

2557953707 is an equidigital number, since it uses as much as digits as its factorization.

2557953707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36027588.

The product of its (nonzero) digits is 2315250, while the sum is 50.

The square root of 2557953707 is about 50576.2168118573. The cubic root of 2557953707 is about 1367.6161693681.

The spelling of 2557953707 in words is "two billion, five hundred fifty-seven million, nine hundred fifty-three thousand, seven hundred seven".