252878619 has 16 divisors (see below), whose sum is σ = 405620480. Its totient is φ = 136896480.

The previous prime is 252878597. The next prime is 252878623. The reversal of 252878619 is 916878252.

It is not a de Polignac number, because 252878619 - 2¹⁶ = 252813083 is a prime.

It is a super-2 number, since 2×252878619² = 127895191894694322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (48) 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 not an unprimeable number, because it can be changed into a prime (252878419) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 316492 + ... + 317289.

It is an arithmetic number, because the mean of its divisors is an integer number (25351280).

Almost surely, 2^252878619 is an apocalyptic number.

252878619 is a deficient number, since it is larger than the sum of its proper divisors (152741861).

252878619 is a wasteful number, since it uses less digits than its factorization.

252878619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633810.

The product of its digits is 483840, while the sum is 48.

The square root of 252878619 is about 15902.1576837862. The cubic root of 252878619 is about 632.3691920696.

The spelling of 252878619 in words is "two hundred fifty-two million, eight hundred seventy-eight thousand, six hundred nineteen".