253028493 has 24 divisors (see below), whose sum is σ = 389188800. Its totient is φ = 157858944.

The previous prime is 253028471. The next prime is 253028537. The reversal of 253028493 is 394820352.

253028493 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 253028493 - 2¹⁰ = 253027469 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253028443) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22768 + ... + 32006.

It is an arithmetic number, because the mean of its divisors is an integer number (16216200).

Almost surely, 2^253028493 is an apocalyptic number.

It is an amenable number.

253028493 is a deficient number, since it is larger than the sum of its proper divisors (136160307).

253028493 is a wasteful number, since it uses less digits than its factorization.

253028493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9441 (or 9438 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 253028493 is about 15906.8693651516. The cubic root of 253028493 is about 632.4940965042.

The spelling of 253028493 in words is "two hundred fifty-three million, twenty-eight thousand, four hundred ninety-three".