556642153 has 4 divisors (see below), whose sum is σ = 575836740. Its totient is φ = 537447568.

The previous prime is 556642147. The next prime is 556642157. The reversal of 556642153 is 351246655.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 174556944 + 382085209 = 13212^2 + 19547^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-556642153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (556642157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9597250 + ... + 9597307.

It is an arithmetic number, because the mean of its divisors is an integer number (143959185).

Almost surely, 2^556642153 is an apocalyptic number.

It is an amenable number.

556642153 is a deficient number, since it is larger than the sum of its proper divisors (19194587).

556642153 is a wasteful number, since it uses less digits than its factorization.

556642153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19194586.

The product of its digits is 108000, while the sum is 37.

The square root of 556642153 is about 23593.2649923659. The cubic root of 556642153 is about 822.6062983491.

The spelling of 556642153 in words is "five hundred fifty-six million, six hundred forty-two thousand, one hundred fifty-three".