252142500 has 60 divisors (see below), whose sum is σ = 735202160. Its totient is φ = 67236000.

The previous prime is 252142489. The next prime is 252142523. The reversal of 252142500 is 5241252.

It is a happy number.

252142500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (60).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 9310 + ... + 24309.

Almost surely, 2^252142500 is an apocalyptic number.

252142500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252142500 is an abundant number, since it is smaller than the sum of its proper divisors (483059660).

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

252142500 is a wasteful number, since it uses less digits than its factorization.

252142500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33646 (or 33629 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 252142500 is about 15878.9955601732. The cubic root of 252142500 is about 631.7549956966.

Adding to 252142500 its reverse (5241252), we get a palindrome (257383752).

The spelling of 252142500 in words is "two hundred fifty-two million, one hundred forty-two thousand, five hundred".