253870863 has 8 divisors (see below), whose sum is σ = 338846976. Its totient is φ = 169071000.

The previous prime is 253870847. The next prime is 253870891. The reversal of 253870863 is 368078352.

253870863 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 253870863 - 2⁴ = 253870847 is a prime.

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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (253870823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40663 + ... + 46488.

It is an arithmetic number, because the mean of its divisors is an integer number (42355872).

Almost surely, 2^253870863 is an apocalyptic number.

253870863 is a deficient number, since it is larger than the sum of its proper divisors (84976113).

253870863 is an equidigital number, since it uses as much as digits as its factorization.

253870863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88125.

The product of its (nonzero) digits is 241920, while the sum is 42.

The square root of 253870863 is about 15933.3255474179. The cubic root of 253870863 is about 633.1952084440.

The spelling of 253870863 in words is "two hundred fifty-three million, eight hundred seventy thousand, eight hundred sixty-three".