2550401871 has 4 divisors (see below), whose sum is σ = 3400535832. Its totient is φ = 1700267912.

The previous prime is 2550401807. The next prime is 2550401921. The reversal of 2550401871 is 1781040552.

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 2550401871 - 2⁶ = 2550401807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2550401071) 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, 425066976 + ... + 425066981.

It is an arithmetic number, because the mean of its divisors is an integer number (850133958).

Almost surely, 2^2550401871 is an apocalyptic number.

2550401871 is a deficient number, since it is larger than the sum of its proper divisors (850133961).

2550401871 is an equidigital number, since it uses as much as digits as its factorization.

2550401871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 850133960.

The product of its (nonzero) digits is 11200, while the sum is 33.

The square root of 2550401871 is about 50501.5036508815. The cubic root of 2550401871 is about 1366.2689735634.

The spelling of 2550401871 in words is "two billion, five hundred fifty million, four hundred one thousand, eight hundred seventy-one".