247855022 has 4 divisors (see below), whose sum is σ = 371782536. Its totient is φ = 123927510.

The previous prime is 247855021. The next prime is 247855033. The reversal of 247855022 is 220558742.

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

It is a super-2 number, since 2×247855022² = 122864223861240968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247855021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61963754 + ... + 61963757.

It is an arithmetic number, because the mean of its divisors is an integer number (92945634).

Almost surely, 2^247855022 is an apocalyptic number.

247855022 is a deficient number, since it is larger than the sum of its proper divisors (123927514).

247855022 is a wasteful number, since it uses less digits than its factorization.

247855022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123927513.

The product of its (nonzero) digits is 44800, while the sum is 35.

The square root of 247855022 is about 15743.4120190002. The cubic root of 247855022 is about 628.1536789031.

The spelling of 247855022 in words is "two hundred forty-seven million, eight hundred fifty-five thousand, twenty-two".