252749093 has 8 divisors (see below), whose sum is σ = 264993216. Its totient is φ = 240609600.

The previous prime is 252749089. The next prime is 252749099. The reversal of 252749093 is 390947252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 252749093 - 2² = 252749089 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 252749093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252749099) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21188 + ... + 30893.

It is an arithmetic number, because the mean of its divisors is an integer number (33124152).

Almost surely, 2^252749093 is an apocalyptic number.

252749093 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

252749093 is a deficient number, since it is larger than the sum of its proper divisors (12244123).

252749093 is a wasteful number, since it uses less digits than its factorization.

252749093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52315.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 252749093 is about 15898.0845701613. The cubic root of 252749093 is about 632.2612058205.

The spelling of 252749093 in words is "two hundred fifty-two million, seven hundred forty-nine thousand, ninety-three".