252231454445 has 16 divisors (see below), whose sum is σ = 305510583600. Its totient is φ = 199898409984.

The previous prime is 252231454429. The next prime is 252231454457. The reversal of 252231454445 is 544454132252.

It can be written as a sum of positive squares in 8 ways, for example, as 186031766596 + 66199687849 = 431314^2 + 257293^2 .

It is a cyclic number.

It is not a de Polignac number, because 252231454445 - 2⁴ = 252231454429 is a prime.

It is a super-2 number, since 2×252231454445² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1016531 + ... + 1240079.

It is an arithmetic number, because the mean of its divisors is an integer number (19094411475).

Almost surely, 2^252231454445 is an apocalyptic number.

It is an amenable number.

252231454445 is a deficient number, since it is larger than the sum of its proper divisors (53279129155).

252231454445 is a wasteful number, since it uses less digits than its factorization.

252231454445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225664.

The product of its digits is 768000, while the sum is 41.

Adding to 252231454445 its reverse (544454132252), we get a palindrome (796685586697).

The spelling of 252231454445 in words is "two hundred fifty-two billion, two hundred thirty-one million, four hundred fifty-four thousand, four hundred forty-five".