253380066 has 16 divisors (see below), whose sum is σ = 511497504. Its totient is φ = 83670464.

The previous prime is 253380011. The next prime is 253380079. The reversal of 253380066 is 660083352.

253380066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196695 + ... + 197978.

It is an arithmetic number, because the mean of its divisors is an integer number (31968594).

Almost surely, 2^253380066 is an apocalyptic number.

253380066 is an abundant number, since it is smaller than the sum of its proper divisors (258117438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

253380066 is a wasteful number, since it uses less digits than its factorization.

253380066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394785.

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 253380066 is about 15917.9165093928. The cubic root of 253380066 is about 632.7869027061.

The spelling of 253380066 in words is "two hundred fifty-three million, three hundred eighty thousand, sixty-six".