252402535 has 32 divisors (see below), whose sum is σ = 381417984. Its totient is φ = 155760000.

The previous prime is 252402523. The next prime is 252402539. The reversal of 252402535 is 535204252.

It is a de Polignac number, because none of the positive numbers 2^k-252402535 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 (252402539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35640 + ... + 42130.

It is an arithmetic number, because the mean of its divisors is an integer number (11919312).

Almost surely, 2^252402535 is an apocalyptic number.

252402535 is a deficient number, since it is larger than the sum of its proper divisors (129015449).

252402535 is a wasteful number, since it uses less digits than its factorization.

252402535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6615.

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 252402535 is about 15887.1814680893. The cubic root of 252402535 is about 631.9720977574.

Adding to 252402535 its reverse (535204252), we get a palindrome (787606787).

The spelling of 252402535 in words is "two hundred fifty-two million, four hundred two thousand, five hundred thirty-five".