252403205135 has 16 divisors (see below), whose sum is σ = 313343275392. Its totient is φ = 195047136000.

The previous prime is 252403205099. The next prime is 252403205143. The reversal of 252403205135 is 531502304252.

It is not a de Polignac number, because 252403205135 - 2⁶ = 252403205071 is a prime.

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, 6074519 + ... + 6115928.

It is an arithmetic number, because the mean of its divisors is an integer number (19583954712).

Almost surely, 2^252403205135 is an apocalyptic number.

252403205135 is a deficient number, since it is larger than the sum of its proper divisors (60940070257).

252403205135 is a wasteful number, since it uses less digits than its factorization.

252403205135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12190594.

The product of its (nonzero) digits is 36000, while the sum is 32.

Adding to 252403205135 its reverse (531502304252), we get a palindrome (783905509387).

The spelling of 252403205135 in words is "two hundred fifty-two billion, four hundred three million, two hundred five thousand, one hundred thirty-five".