252611635 has 4 divisors (see below), whose sum is σ = 303133968. Its totient is φ = 202089304.

The previous prime is 252611629. The next prime is 252611647. The reversal of 252611635 is 536116252.

252611635 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 is a cyclic number.

It is not a de Polignac number, because 252611635 - 2⁵ = 252611603 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 252611597 and 252611606.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25261159 + ... + 25261168.

It is an arithmetic number, because the mean of its divisors is an integer number (75783492).

Almost surely, 2^252611635 is an apocalyptic number.

252611635 is a deficient number, since it is larger than the sum of its proper divisors (50522333).

252611635 is an equidigital number, since it uses as much as digits as its factorization.

252611635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50522332.

The product of its digits is 10800, while the sum is 31.

The square root of 252611635 is about 15893.7608828118. The cubic root of 252611635 is about 632.1465662784.

Adding to 252611635 its reverse (536116252), we get a palindrome (788727887).

It can be divided in two parts, 25261 and 1635, that added together give a square (26896 = 164²).

The spelling of 252611635 in words is "two hundred fifty-two million, six hundred eleven thousand, six hundred thirty-five".