253291898 has 8 divisors (see below), whose sum is σ = 383488992. Its totient is φ = 125462236.

The previous prime is 253291877. The next prime is 253291903. The reversal of 253291898 is 898192352.

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

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 591590 + ... + 592017.

It is an arithmetic number, because the mean of its divisors is an integer number (47936124).

Almost surely, 2^253291898 is an apocalyptic number.

253291898 is a deficient number, since it is larger than the sum of its proper divisors (130197094).

253291898 is a wasteful number, since it uses less digits than its factorization.

253291898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1183716.

The product of its digits is 311040, while the sum is 47.

The square root of 253291898 is about 15915.1468105073. The cubic root of 253291898 is about 632.7134977892.

It can be divided in two parts, 25 and 3291898, that added together give a palindrome (3291923).

The spelling of 253291898 in words is "two hundred fifty-three million, two hundred ninety-one thousand, eight hundred ninety-eight".