1556255242 has 16 divisors (see below), whose sum is σ = 2551433472. Its totient is φ = 708730560.

The previous prime is 1556255237. The next prime is 1556255251. The reversal of 1556255242 is 2425526551.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 737208 + ... + 739315.

It is an arithmetic number, because the mean of its divisors is an integer number (159464592).

Almost surely, 2^1556255242 is an apocalyptic number.

1556255242 is a deficient number, since it is larger than the sum of its proper divisors (995178230).

1556255242 is a wasteful number, since it uses less digits than its factorization.

1556255242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1476573.

The product of its digits is 120000, while the sum is 37.

The square root of 1556255242 is about 39449.4010347432. The cubic root of 1556255242 is about 1158.8492457354.

The spelling of 1556255242 in words is "one billion, five hundred fifty-six million, two hundred fifty-five thousand, two hundred forty-two".