556353540 has 36 divisors (see below), whose sum is σ = 1687606284. Its totient is φ = 148360896.

The previous prime is 556353527. The next prime is 556353541. The reversal of 556353540 is 45353655.

556353540 is a `hidden beast` number, since 5 + 5 + 63 + 53 + 540 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 440748036 + 115605504 = 20994^2 + 10752^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×556353540² = 619058522941063200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 556353495 and 556353504.

It is not an unprimeable number, because it can be changed into a prime (556353541) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1545247 + ... + 1545606.

Almost surely, 2^556353540 is an apocalyptic number.

It is an amenable number.

556353540 is an abundant number, since it is smaller than the sum of its proper divisors (1131252744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

556353540 is a wasteful number, since it uses less digits than its factorization.

556353540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3090868 (or 3090863 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 36.

The square root of 556353540 is about 23587.1477716149. The cubic root of 556353540 is about 822.4641029162.

The spelling of 556353540 in words is "five hundred fifty-six million, three hundred fifty-three thousand, five hundred forty".