252647020 has 24 divisors (see below), whose sum is σ = 536954544. Its totient is φ = 99840576.

The previous prime is 252646981. The next prime is 252647023. The reversal of 252647020 is 20746252.

It is a self number, because there is not a number n which added to its sum of digits gives 252647020.

It is not an unprimeable number, because it can be changed into a prime (252647023) 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, 74439 + ... + 77758.

It is an arithmetic number, because the mean of its divisors is an integer number (22373106).

Almost surely, 2^252647020 is an apocalyptic number.

252647020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252647020 is an abundant number, since it is smaller than the sum of its proper divisors (284307524).

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

252647020 is a wasteful number, since it uses less digits than its factorization.

252647020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152289 (or 152287 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 252647020 is about 15894.8740164872. The cubic root of 252647020 is about 632.1760812318.

The spelling of 252647020 in words is "two hundred fifty-two million, six hundred forty-seven thousand, twenty".