247955355 has 12 divisors (see below), whose sum is σ = 429789360. Its totient is φ = 132242832.

The previous prime is 247955333. The next prime is 247955369. The reversal of 247955355 is 553559742.

247955355 is a `hidden beast` number, since 2 + 47 + 9 + 553 + 55 = 666.

It is not a de Polignac number, because 247955355 - 2¹⁶ = 247889819 is a prime.

It is a super-2 number, since 2×247955355² = 122963716146352050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 5510119 = 247955355 / (2 + 4 + 7 + 9 + 5 + 5 + 3 + 5 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 247955355.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2755015 + ... + 2755104.

It is an arithmetic number, because the mean of its divisors is an integer number (35815780).

Almost surely, 2^247955355 is an apocalyptic number.

247955355 is a deficient number, since it is larger than the sum of its proper divisors (181834005).

247955355 is a wasteful number, since it uses less digits than its factorization.

247955355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5510130 (or 5510127 counting only the distinct ones).

The product of its digits is 945000, while the sum is 45.

The square root of 247955355 is about 15746.5982040566. The cubic root of 247955355 is about 628.2384274256.

The spelling of 247955355 in words is "two hundred forty-seven million, nine hundred fifty-five thousand, three hundred fifty-five".