247145556252 has 48 divisors (see below), whose sum is σ = 659220353792. Its totient is φ = 70595280000.

The previous prime is 247145556223. The next prime is 247145556289. The reversal of 247145556252 is 252655541742.

It is a happy number.

It is a super-2 number, since 2×247145556252² (a number of 24 digits) contains 22 as substring.

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, 31249 + ... + 703752.

Almost surely, 2^247145556252 is an apocalyptic number.

It is an amenable number.

247145556252 is an abundant number, since it is smaller than the sum of its proper divisors (412074797540).

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

247145556252 is a wasteful number, since it uses less digits than its factorization.

247145556252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 739018 (or 739016 counting only the distinct ones).

The product of its digits is 3360000, while the sum is 48.

The spelling of 247145556252 in words is "two hundred forty-seven billion, one hundred forty-five million, five hundred fifty-six thousand, two hundred fifty-two".