252215800 has 24 divisors (see below), whose sum is σ = 586402200. Its totient is φ = 100886240.

The previous prime is 252215797. The next prime is 252215801. The reversal of 252215800 is 8512252.

It is a super-2 number, since 2×252215800² = 127225619539280000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252215801) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 630340 + ... + 630739.

It is an arithmetic number, because the mean of its divisors is an integer number (24433425).

Almost surely, 2^252215800 is an apocalyptic number.

252215800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252215800 is an abundant number, since it is smaller than the sum of its proper divisors (334186400).

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

252215800 is a wasteful number, since it uses less digits than its factorization.

252215800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1261095 (or 1261086 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 252215800 is about 15881.3034729521. The cubic root of 252215800 is about 631.8162086410.

The spelling of 252215800 in words is "two hundred fifty-two million, two hundred fifteen thousand, eight hundred".