252031522 has 4 divisors (see below), whose sum is σ = 378047286. Its totient is φ = 126015760.

The previous prime is 252031513. The next prime is 252031541. The reversal of 252031522 is 225130252.

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., 208484721 + 43546801 = 14439^2 + 6599^2 .

It is a junction number, because it is equal to n+sod(n) for n = 252031493 and 252031502.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63007879 + ... + 63007882.

Almost surely, 2^252031522 is an apocalyptic number.

252031522 is a deficient number, since it is larger than the sum of its proper divisors (126015764).

252031522 is a wasteful number, since it uses less digits than its factorization.

252031522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126015763.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 252031522 is about 15875.5006850178. The cubic root of 252031522 is about 631.6622952135.

Adding to 252031522 its reverse (225130252), we get a palindrome (477161774).

The spelling of 252031522 in words is "two hundred fifty-two million, thirty-one thousand, five hundred twenty-two".