247552530 has 16 divisors (see below), whose sum is σ = 594126144. Its totient is φ = 66014000.

The previous prime is 247552511. The next prime is 247552531. The reversal of 247552530 is 35255742.

It is a super-2 number, since 2×247552530² = 122564510218801800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 247552491 and 247552500.

It is not an unprimeable number, because it can be changed into a prime (247552531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4125846 + ... + 4125905.

It is an arithmetic number, because the mean of its divisors is an integer number (37132884).

Almost surely, 2^247552530 is an apocalyptic number.

247552530 is an abundant number, since it is smaller than the sum of its proper divisors (346573614).

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

247552530 is a wasteful number, since it uses less digits than its factorization.

247552530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8251761.

The product of its (nonzero) digits is 42000, while the sum is 33.

The square root of 247552530 is about 15733.8021469701. The cubic root of 247552530 is about 627.8980337378.

The spelling of 247552530 in words is "two hundred forty-seven million, five hundred fifty-two thousand, five hundred thirty".