253550330 has 16 divisors (see below), whose sum is σ = 497880864. Its totient is φ = 92200080.

The previous prime is 253550281. The next prime is 253550377. The reversal of 253550330 is 33055352.

It is a self number, because there is not a number n which added to its sum of digits gives 253550330.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1152392 + ... + 1152611.

It is an arithmetic number, because the mean of its divisors is an integer number (31117554).

Almost surely, 2^253550330 is an apocalyptic number.

253550330 is a deficient number, since it is larger than the sum of its proper divisors (244330534).

253550330 is a wasteful number, since it uses less digits than its factorization.

253550330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2305021.

The product of its (nonzero) digits is 6750, while the sum is 26.

The square root of 253550330 is about 15923.2637986061. The cubic root of 253550330 is about 632.9286090724.

The spelling of 253550330 in words is "two hundred fifty-three million, five hundred fifty thousand, three hundred thirty".