2455815394 has 4 divisors (see below), whose sum is σ = 3683723094. Its totient is φ = 1227907696.

The previous prime is 2455815389. The next prime is 2455815407. The reversal of 2455815394 is 4935185542.

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., 1910826369 + 544989025 = 43713^2 + 23345^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 613953847 + ... + 613953850.

Almost surely, 2^2455815394 is an apocalyptic number.

2455815394 is a deficient number, since it is larger than the sum of its proper divisors (1227907700).

2455815394 is a wasteful number, since it uses less digits than its factorization.

2455815394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1227907699.

The product of its digits is 864000, while the sum is 46.

The square root of 2455815394 is about 49556.1842154942. The cubic root of 2455815394 is about 1349.1655371654.

The spelling of 2455815394 in words is "two billion, four hundred fifty-five million, eight hundred fifteen thousand, three hundred ninety-four".