2550571157 has 4 divisors (see below), whose sum is σ = 2553294156. Its totient is φ = 2547848160.

The previous prime is 2550571151. The next prime is 2550571189. The reversal of 2550571157 is 7511750552.

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

It can be written as a sum of positive squares in 2 ways, for example, as 78393316 + 2472177841 = 8854^2 + 49721^2 .

It is a cyclic number.

It is not a de Polignac number, because 2550571157 - 2²² = 2546376853 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 2550571157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2550571151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1360094 + ... + 1361967.

It is an arithmetic number, because the mean of its divisors is an integer number (638323539).

Almost surely, 2^2550571157 is an apocalyptic number.

It is an amenable number.

2550571157 is a deficient number, since it is larger than the sum of its proper divisors (2722999).

2550571157 is an equidigital number, since it uses as much as digits as its factorization.

2550571157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2722998.

The product of its (nonzero) digits is 61250, while the sum is 38.

The square root of 2550571157 is about 50503.1796721751. The cubic root of 2550571157 is about 1366.2992021449.

The spelling of 2550571157 in words is "two billion, five hundred fifty million, five hundred seventy-one thousand, one hundred fifty-seven".