252251635 has 16 divisors (see below), whose sum is σ = 308056320. Its totient is φ = 198263520.

The previous prime is 252251621. The next prime is 252251669. The reversal of 252251635 is 536152252.

It is a happy number.

It is not a de Polignac number, because 252251635 - 2¹³ = 252243443 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 252251597 and 252251606.

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, 65596 + ... + 69334.

It is an arithmetic number, because the mean of its divisors is an integer number (19253520).

Almost surely, 2^252251635 is an apocalyptic number.

252251635 is a deficient number, since it is larger than the sum of its proper divisors (55804685).

252251635 is a wasteful number, since it uses less digits than its factorization.

252251635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3978.

The product of its digits is 18000, while the sum is 31.

The square root of 252251635 is about 15882.4316463191. The cubic root of 252251635 is about 631.8461301892.

The spelling of 252251635 in words is "two hundred fifty-two million, two hundred fifty-one thousand, six hundred thirty-five".