253355919 has 16 divisors (see below), whose sum is σ = 350269920. Its totient is φ = 162700160.

The previous prime is 253355873. The next prime is 253355959. The reversal of 253355919 is 919553352.

It is a cyclic number.

It is not a de Polignac number, because 253355919 - 2¹¹ = 253353871 is a prime.

It is a super-2 number, since 2×253355919² = 128378443384669122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253355959) 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, 36949 + ... + 43265.

It is an arithmetic number, because the mean of its divisors is an integer number (21891870).

Almost surely, 2^253355919 is an apocalyptic number.

253355919 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

253355919 is a deficient number, since it is larger than the sum of its proper divisors (96914001).

253355919 is a wasteful number, since it uses less digits than its factorization.

253355919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6810.

The product of its digits is 182250, while the sum is 42.

The square root of 253355919 is about 15917.1580063779. The cubic root of 253355919 is about 632.7668006370.

The spelling of 253355919 in words is "two hundred fifty-three million, three hundred fifty-five thousand, nine hundred nineteen".