253764039 has 4 divisors (see below), whose sum is σ = 338352056. Its totient is φ = 169176024.

The previous prime is 253764029. The next prime is 253764097. The reversal of 253764039 is 930467352.

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

It is not a de Polignac number, because 253764039 - 2⁷ = 253763911 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 253763988 and 253764006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253764029) 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, 42294004 + ... + 42294009.

It is an arithmetic number, because the mean of its divisors is an integer number (84588014).

Almost surely, 2^253764039 is an apocalyptic number.

253764039 is a deficient number, since it is larger than the sum of its proper divisors (84588017).

253764039 is an equidigital number, since it uses as much as digits as its factorization.

253764039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84588016.

The product of its (nonzero) digits is 136080, while the sum is 39.

The square root of 253764039 is about 15929.9729754950. The cubic root of 253764039 is about 633.1063838428.

The spelling of 253764039 in words is "two hundred fifty-three million, seven hundred sixty-four thousand, thirty-nine".