252111898 has 4 divisors (see below), whose sum is σ = 378167850. Its totient is φ = 126055948.

The previous prime is 252111883. The next prime is 252111907. The reversal of 252111898 is 898111252.

252111898 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 212080969 + 40030929 = 14563^2 + 6327^2 .

It is a super-2 number, since 2×252111898² = 127120818226324808, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63027973 + ... + 63027976.

Almost surely, 2^252111898 is an apocalyptic number.

252111898 is a deficient number, since it is larger than the sum of its proper divisors (126055952).

252111898 is a wasteful number, since it uses less digits than its factorization.

252111898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126055951.

The product of its digits is 11520, while the sum is 37.

The square root of 252111898 is about 15878.0319309416. The cubic root of 252111898 is about 631.7294364082.

It can be divided in two parts, 252111 and 898, that added together give a square (253009 = 503²).

The spelling of 252111898 in words is "two hundred fifty-two million, one hundred eleven thousand, eight hundred ninety-eight".