253719494 has 16 divisors (see below), whose sum is σ = 441075456. Its totient is φ = 107205000.

The previous prime is 253719493. The next prime is 253719497. The reversal of 253719494 is 494917352.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253719493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126632 + ... + 128619.

It is an arithmetic number, because the mean of its divisors is an integer number (27567216).

Almost surely, 2^253719494 is an apocalyptic number.

253719494 is a deficient number, since it is larger than the sum of its proper divisors (187355962).

253719494 is a wasteful number, since it uses less digits than its factorization.

253719494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255331.

The product of its digits is 272160, while the sum is 44.

The square root of 253719494 is about 15928.5747636127. The cubic root of 253719494 is about 633.0693371251.

The spelling of 253719494 in words is "two hundred fifty-three million, seven hundred nineteen thousand, four hundred ninety-four".