252899994 has 48 divisors (see below), whose sum is σ = 544141152. Its totient is φ = 78320736.

The previous prime is 252899993. The next prime is 252900023. The reversal of 252899994 is 499998252.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (252899993) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 113697 + ... + 115899.

It is an arithmetic number, because the mean of its divisors is an integer number (11336274).

Almost surely, 2^252899994 is an apocalyptic number.

252899994 is an abundant number, since it is smaller than the sum of its proper divisors (291241158).

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

252899994 is a wasteful number, since it uses less digits than its factorization.

252899994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2299 (or 2280 counting only the distinct ones).

The product of its digits is 4199040, while the sum is 57.

The square root of 252899994 is about 15902.8297481926. The cubic root of 252899994 is about 632.3870089319.

The spelling of 252899994 in words is "two hundred fifty-two million, eight hundred ninety-nine thousand, nine hundred ninety-four".