253065851 has 4 divisors (see below), whose sum is σ = 253552104. Its totient is φ = 252579600.

The previous prime is 253065823. The next prime is 253065871. The reversal of 253065851 is 158560352.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 253065851 - 2²² = 248871547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253065811) 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, 242345 + ... + 243386.

It is an arithmetic number, because the mean of its divisors is an integer number (63388026).

Almost surely, 2^253065851 is an apocalyptic number.

253065851 is a deficient number, since it is larger than the sum of its proper divisors (486253).

253065851 is an equidigital number, since it uses as much as digits as its factorization.

253065851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486252.

The product of its (nonzero) digits is 36000, while the sum is 35.

The square root of 253065851 is about 15908.0435943582. The cubic root of 253065851 is about 632.5252228429.

The spelling of 253065851 in words is "two hundred fifty-three million, sixty-five thousand, eight hundred fifty-one".