253439950 has 24 divisors (see below), whose sum is σ = 473215248. Its totient is φ = 100985280.

The previous prime is 253439947. The next prime is 253439957. The reversal of 253439950 is 59934352.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253439957) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3514 + ... + 22786.

It is an arithmetic number, because the mean of its divisors is an integer number (19717302).

Almost surely, 2^253439950 is an apocalyptic number.

253439950 is a deficient number, since it is larger than the sum of its proper divisors (219775298).

253439950 is a wasteful number, since it uses less digits than its factorization.

253439950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19548 (or 19543 counting only the distinct ones).

The product of its (nonzero) digits is 145800, while the sum is 40.

The square root of 253439950 is about 15919.7974233343. The cubic root of 253439950 is about 632.8367498607.

The spelling of 253439950 in words is "two hundred fifty-three million, four hundred thirty-nine thousand, nine hundred fifty".