556215345 has 48 divisors (see below), whose sum is σ = 1104030720. Its totient is φ = 253763712.

The previous prime is 556215323. The next prime is 556215391. The reversal of 556215345 is 543512655.

556215345 is a `hidden beast` number, since 5 + 562 + 1 + 53 + 45 = 666.

It is not a de Polignac number, because 556215345 - 2⁵ = 556215313 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 189751 + ... + 192659.

It is an arithmetic number, because the mean of its divisors is an integer number (23000640).

Almost surely, 2^556215345 is an apocalyptic number.

It is an amenable number.

556215345 is a deficient number, since it is larger than the sum of its proper divisors (547815375).

556215345 is a wasteful number, since it uses less digits than its factorization.

556215345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3534 (or 3531 counting only the distinct ones).

The product of its digits is 90000, while the sum is 36.

The square root of 556215345 is about 23584.2181341676. The cubic root of 556215345 is about 822.3959988357.

The spelling of 556215345 in words is "five hundred fifty-six million, two hundred fifteen thousand, three hundred forty-five".