253030578078 has 8 divisors (see below), whose sum is σ = 506061156168. Its totient is φ = 84343526024.

The previous prime is 253030578061. The next prime is 253030578127. The reversal of 253030578078 is 870875030352.

It is a sphenic number, since it is the product of 3 distinct primes.

253030578078 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21085881501 + ... + 21085881512.

It is an arithmetic number, because the mean of its divisors is an integer number (63257644521).

Almost surely, 2^253030578078 is an apocalyptic number.

253030578078 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

253030578078 is a wasteful number, since it uses less digits than its factorization.

253030578078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42171763018.

The product of its (nonzero) digits is 1411200, while the sum is 48.

The spelling of 253030578078 in words is "two hundred fifty-three billion, thirty million, five hundred seventy-eight thousand, seventy-eight".