252045020 has 24 divisors (see below), whose sum is σ = 540558144. Its totient is φ = 98672576.

The previous prime is 252045011. The next prime is 252045113. The reversal of 252045020 is 20540252.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 252044983 and 252045001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133127 + ... + 135006.

It is an arithmetic number, because the mean of its divisors is an integer number (22523256).

Almost surely, 2^252045020 is an apocalyptic number.

252045020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252045020 is an abundant number, since it is smaller than the sum of its proper divisors (288513124).

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

252045020 is a wasteful number, since it uses less digits than its factorization.

252045020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268189 (or 268187 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 252045020 is about 15875.9257997762. The cubic root of 252045020 is about 631.6735716144.

Adding to 252045020 its reverse (20540252), we get a palindrome (272585272).

The spelling of 252045020 in words is "two hundred fifty-two million, forty-five thousand, twenty".