2555469394 has 4 divisors (see below), whose sum is σ = 3833204094. Its totient is φ = 1277734696.

The previous prime is 2555469379. The next prime is 2555469439. The reversal of 2555469394 is 4939645552.

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

It can be written as a sum of positive squares in only one way, i.e., 2503701369 + 51768025 = 50037^2 + 7195^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 638867347 + ... + 638867350.

Almost surely, 2^2555469394 is an apocalyptic number.

2555469394 is a deficient number, since it is larger than the sum of its proper divisors (1277734700).

2555469394 is a wasteful number, since it uses less digits than its factorization.

2555469394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1277734699.

The product of its digits is 5832000, while the sum is 52.

The square root of 2555469394 is about 50551.6507544511. The cubic root of 2555469394 is about 1367.1732779614.

The spelling of 2555469394 in words is "two billion, five hundred fifty-five million, four hundred sixty-nine thousand, three hundred ninety-four".