2557374427 has 4 divisors (see below), whose sum is σ = 2560352440. Its totient is φ = 2554396416.

The previous prime is 2557374383. The next prime is 2557374437. The reversal of 2557374427 is 7244737552.

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 2557374427 - 2²⁷ = 2423156699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2557374437) 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, 1487718 + ... + 1489435.

It is an arithmetic number, because the mean of its divisors is an integer number (640088110).

Almost surely, 2^2557374427 is an apocalyptic number.

2557374427 is a deficient number, since it is larger than the sum of its proper divisors (2978013).

2557374427 is an equidigital number, since it uses as much as digits as its factorization.

2557374427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2978012.

The product of its digits is 1646400, while the sum is 46.

The square root of 2557374427 is about 50570.4896851909. The cubic root of 2557374427 is about 1367.5129237538.

It can be divided in two parts, 25573 and 74427, that added together give a 5-th power (100000 = 10⁵).

The spelling of 2557374427 in words is "two billion, five hundred fifty-seven million, three hundred seventy-four thousand, four hundred twenty-seven".