252547824540 has 96 divisors (see below), whose sum is σ = 779371778304. Its totient is φ = 60592527360.

The previous prime is 252547824493. The next prime is 252547824547. The reversal of 252547824540 is 45428745252.

It is a self number, because there is not a number n which added to its sum of digits gives 252547824540.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252547824547) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1908394 + ... + 2036433.

It is an arithmetic number, because the mean of its divisors is an integer number (8118456024).

Almost surely, 2^252547824540 is an apocalyptic number.

252547824540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252547824540 is an abundant number, since it is smaller than the sum of its proper divisors (526823953764).

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

252547824540 is a wasteful number, since it uses less digits than its factorization.

252547824540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3944947 (or 3944945 counting only the distinct ones).

The product of its (nonzero) digits is 3584000, while the sum is 48.

The spelling of 252547824540 in words is "two hundred fifty-two billion, five hundred forty-seven million, eight hundred twenty-four thousand, five hundred forty".