2552005857 has 4 divisors (see below), whose sum is σ = 3402674480. Its totient is φ = 1701337236.

The previous prime is 2552005831. The next prime is 2552005861. The reversal of 2552005857 is 7585002552.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2552005857 - 2⁶ = 2552005793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2552001857) 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, 425334307 + ... + 425334312.

It is an arithmetic number, because the mean of its divisors is an integer number (850668620).

Almost surely, 2^2552005857 is an apocalyptic number.

It is an amenable number.

2552005857 is a deficient number, since it is larger than the sum of its proper divisors (850668623).

2552005857 is an equidigital number, since it uses as much as digits as its factorization.

2552005857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 850668622.

The product of its (nonzero) digits is 140000, while the sum is 39.

The square root of 2552005857 is about 50517.3817314397. The cubic root of 2552005857 is about 1366.5553358911. Note that the first 3 decimals are identical.

The spelling of 2552005857 in words is "two billion, five hundred fifty-two million, five thousand, eight hundred fifty-seven".