253680886 has 4 divisors (see below), whose sum is σ = 380521332. Its totient is φ = 126840442.

The previous prime is 253680871. The next prime is 253680887. The reversal of 253680886 is 688086352.

It is a happy number.

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 (253680887) 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, 63420220 + ... + 63420223.

It is an arithmetic number, because the mean of its divisors is an integer number (95130333).

Almost surely, 2^253680886 is an apocalyptic number.

253680886 is a deficient number, since it is larger than the sum of its proper divisors (126840446).

253680886 is a wasteful number, since it uses less digits than its factorization.

253680886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126840445.

The product of its (nonzero) digits is 552960, while the sum is 46.

The square root of 253680886 is about 15927.3628074456. The cubic root of 253680886 is about 633.0372245212.

The spelling of 253680886 in words is "two hundred fifty-three million, six hundred eighty thousand, eight hundred eighty-six".