253680855 has 32 divisors (see below), whose sum is σ = 415908864. Its totient is φ = 131976576.

The previous prime is 253680853. The next prime is 253680871. The reversal of 253680855 is 558086352.

It is not a de Polignac number, because 253680855 - 2¹ = 253680853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253680853) 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 in 31 ways as a sum of consecutive naturals, for example, 413529 + ... + 414141.

It is an arithmetic number, because the mean of its divisors is an integer number (12997152).

Almost surely, 2^253680855 is an apocalyptic number.

253680855 is a deficient number, since it is larger than the sum of its proper divisors (162228009).

253680855 is a wasteful number, since it uses less digits than its factorization.

253680855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1255.

The product of its (nonzero) digits is 288000, while the sum is 42.

The square root of 253680855 is about 15927.3618342775. The cubic root of 253680855 is about 633.0371987354.

The spelling of 253680855 in words is "two hundred fifty-three million, six hundred eighty thousand, eight hundred fifty-five".