1555457113 has 8 divisors (see below), whose sum is σ = 1778922432. Its totient is φ = 1332306096.

The previous prime is 1555457107. The next prime is 1555457153. The reversal of 1555457113 is 3117545551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1555457113 - 2⁹ = 1555456601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1555457153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67870 + ... + 87847.

It is an arithmetic number, because the mean of its divisors is an integer number (222365304).

Almost surely, 2^1555457113 is an apocalyptic number.

It is an amenable number.

1555457113 is a deficient number, since it is larger than the sum of its proper divisors (223465319).

1555457113 is a wasteful number, since it uses less digits than its factorization.

1555457113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157151.

The product of its digits is 52500, while the sum is 37.

The square root of 1555457113 is about 39439.2838804155. The cubic root of 1555457113 is about 1158.6511057123.

The spelling of 1555457113 in words is "one billion, five hundred fifty-five million, four hundred fifty-seven thousand, one hundred thirteen".