252780619 has 16 divisors (see below), whose sum is σ = 311942848. Its totient is φ = 199469952.

The previous prime is 252780607. The next prime is 252780631. The reversal of 252780619 is 916087252.

It is an interprime number because it is at equal distance from previous prime (252780607) and next prime (252780631).

It is a cyclic number.

It is not a de Polignac number, because 252780619 - 2⁵ = 252780587 is a prime.

It is a super-2 number, since 2×252780619² = 127796082684046322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (252780019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32629 + ... + 39625.

It is an arithmetic number, because the mean of its divisors is an integer number (19496428).

Almost surely, 2^252780619 is an apocalyptic number.

252780619 is a deficient number, since it is larger than the sum of its proper divisors (59162229).

252780619 is a wasteful number, since it uses less digits than its factorization.

252780619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7414.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 252780619 is about 15899.0760423365. The cubic root of 252780619 is about 632.2874925460.

The spelling of 252780619 in words is "two hundred fifty-two million, seven hundred eighty thousand, six hundred nineteen".