252281399039 has 4 divisors (see below), whose sum is σ = 252286854456. Its totient is φ = 252275943624.

The previous prime is 252281398951. The next prime is 252281399047. The reversal of 252281399039 is 930993182252.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 252281399039 - 2³⁶ = 183561922303 is a prime.

It is a super-3 number, since 3×252281399039³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252281399939) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2657744 + ... + 2751029.

It is an arithmetic number, because the mean of its divisors is an integer number (63071713614).

Almost surely, 2^252281399039 is an apocalyptic number.

252281399039 is a deficient number, since it is larger than the sum of its proper divisors (5455417).

252281399039 is an equidigital number, since it uses as much as digits as its factorization.

252281399039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5455416.

The product of its (nonzero) digits is 2099520, while the sum is 53.

The spelling of 252281399039 in words is "two hundred fifty-two billion, two hundred eighty-one million, three hundred ninety-nine thousand, thirty-nine".