556032945 has 16 divisors (see below), whose sum is σ = 958087872. Its totient is φ = 273739200.

The previous prime is 556032941. The next prime is 556032947. The reversal of 556032945 is 549230655.

It is not a de Polignac number, because 556032945 - 2² = 556032941 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (556032941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1425531 + ... + 1425920.

It is an arithmetic number, because the mean of its divisors is an integer number (59880492).

Almost surely, 2^556032945 is an apocalyptic number.

It is an amenable number.

556032945 is a deficient number, since it is larger than the sum of its proper divisors (402054927).

556032945 is a wasteful number, since it uses less digits than its factorization.

556032945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2851472.

The product of its (nonzero) digits is 162000, while the sum is 39.

The square root of 556032945 is about 23580.3508243622. The cubic root of 556032945 is about 822.3060927519.

The spelling of 556032945 in words is "five hundred fifty-six million, thirty-two thousand, nine hundred forty-five".