253870081 has 4 divisors (see below), whose sum is σ = 254577600. Its totient is φ = 253162564.

The previous prime is 253870069. The next prime is 253870093. The reversal of 253870081 is 180078352.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (253870069) and next prime (253870093).

It is a cyclic number.

It is not a de Polignac number, because 253870081 - 2¹³ = 253861889 is a prime.

It is a super-2 number, since 2×253870081² = 128900036053893122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253870051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 353221 + ... + 353938.

It is an arithmetic number, because the mean of its divisors is an integer number (63644400).

It is a Proth number, since it is equal to 15495 ⋅ 2¹⁴ + 1 and 15495 < 2¹⁴.

Almost surely, 2^253870081 is an apocalyptic number.

It is an amenable number.

253870081 is a deficient number, since it is larger than the sum of its proper divisors (707519).

253870081 is an equidigital number, since it uses as much as digits as its factorization.

253870081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707518.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 253870081 is about 15933.3010076381. The cubic root of 253870081 is about 633.1945582983.

The spelling of 253870081 in words is "two hundred fifty-three million, eight hundred seventy thousand, eighty-one".