345125556 has 48 divisors (see below), whose sum is σ = 909455680. Its totient is φ = 113153760.

The previous prime is 345125527. The next prime is 345125587. The reversal of 345125556 is 655521543.

345125556 is a `hidden beast` number, since 34 + 51 + 25 + 556 = 666.

It is a super-2 number, since 2×345125556² = 238223298808618272, which contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 345125556.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19606 + ... + 32781.

Almost surely, 2^345125556 is an apocalyptic number.

345125556 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

345125556 is an abundant number, since it is smaller than the sum of its proper divisors (564330124).

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

345125556 is a wasteful number, since it uses less digits than its factorization.

345125556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52461 (or 52453 counting only the distinct ones).

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

The square root of 345125556 is about 18577.5551674595. Note that the first 3 decimals coincide. The cubic root of 345125556 is about 701.4429798603.

The spelling of 345125556 in words is "three hundred forty-five million, one hundred twenty-five thousand, five hundred fifty-six".