253216018 has 8 divisors (see below), whose sum is σ = 414353520. Its totient is φ = 115098180.

The previous prime is 253216013. The next prime is 253216027. The reversal of 253216018 is 810612352.

253216018 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (253216013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5754888 + ... + 5754931.

It is an arithmetic number, because the mean of its divisors is an integer number (51794190).

Almost surely, 2^253216018 is an apocalyptic number.

253216018 is a deficient number, since it is larger than the sum of its proper divisors (161137502).

253216018 is a wasteful number, since it uses less digits than its factorization.

253216018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11509832.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 253216018 is about 15912.7627393863. The cubic root of 253216018 is about 632.6503096972.

The spelling of 253216018 in words is "two hundred fifty-three million, two hundred sixteen thousand, eighteen".