253019 has 4 divisors (see below), whose sum is σ = 272496. Its totient is φ = 233544.

The previous prime is 253013. The next prime is 253049. The reversal of 253019 is 910352.

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 253019 - 2⁴ = 253003 is a prime.

It is a super-2 number, since 2×253019² = 128037228722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253013) 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, 9719 + ... + 9744.

It is an arithmetic number, because the mean of its divisors is an integer number (68124).

253019 is a Friedman number, since it can be written as 503^2+9+1, using all its digits and the basic arithmetic operations.

2²⁵³⁰¹⁹ is an apocalyptic number.

253019 is a deficient number, since it is larger than the sum of its proper divisors (19477).

253019 is a wasteful number, since it uses less digits than its factorization.

253019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19476.

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 253019 is about 503.0099402596. The cubic root of 253019 is about 63.2486186537.

The spelling of 253019 in words is "two hundred fifty-three thousand, nineteen".