1556845952 has 16 divisors (see below), whose sum is σ = 3101529300. Its totient is φ = 778422912.

The previous prime is 1556845951. The next prime is 1556845981. The reversal of 1556845952 is 2595486551.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (16).

It is a self number, because there is not a number n which added to its sum of digits gives 1556845952.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1556845951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6081302 + ... + 6081557.

Almost surely, 2^1556845952 is an apocalyptic number.

It is an amenable number.

1556845952 is a deficient number, since it is larger than the sum of its proper divisors (1544683348).

1556845952 is an equidigital number, since it uses as much as digits as its factorization.

1556845952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12162873 (or 12162861 counting only the distinct ones).

The product of its digits is 2160000, while the sum is 50.

The square root of 1556845952 is about 39456.8872568529. The cubic root of 1556845952 is about 1158.9958492031.

The spelling of 1556845952 in words is "one billion, five hundred fifty-six million, eight hundred forty-five thousand, nine hundred fifty-two".