253439486 has 4 divisors (see below), whose sum is σ = 380159232. Its totient is φ = 126719742.

The previous prime is 253439479. The next prime is 253439489. The reversal of 253439486 is 684934352.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253439489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63359870 + ... + 63359873.

It is an arithmetic number, because the mean of its divisors is an integer number (95039808).

Almost surely, 2^253439486 is an apocalyptic number.

253439486 is a deficient number, since it is larger than the sum of its proper divisors (126719746).

253439486 is a wasteful number, since it uses less digits than its factorization.

253439486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126719745.

The product of its digits is 622080, while the sum is 44.

The square root of 253439486 is about 15919.7828502778. The cubic root of 253439486 is about 632.8363636595.

The spelling of 253439486 in words is "two hundred fifty-three million, four hundred thirty-nine thousand, four hundred eighty-six".