252198511 has 4 divisors (see below), whose sum is σ = 252665224. Its totient is φ = 251731800.

The previous prime is 252198497. The next prime is 252198523. The reversal of 252198511 is 115891252.

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 252198511 - 2⁹ = 252197999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252198211) 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, 232545 + ... + 233626.

It is an arithmetic number, because the mean of its divisors is an integer number (63166306).

Almost surely, 2^252198511 is an apocalyptic number.

252198511 is a deficient number, since it is larger than the sum of its proper divisors (466713).

252198511 is an equidigital number, since it uses as much as digits as its factorization.

252198511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466712.

The product of its digits is 7200, while the sum is 34.

The square root of 252198511 is about 15880.7591443230. The cubic root of 252198511 is about 631.8017716390.

The spelling of 252198511 in words is "two hundred fifty-two million, one hundred ninety-eight thousand, five hundred eleven".