253305042 has 8 divisors (see below), whose sum is σ = 506610096. Its totient is φ = 84435012.

The previous prime is 253305037. The next prime is 253305077. The reversal of 253305042 is 240503352.

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

253305042 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21108748 + ... + 21108759.

It is an arithmetic number, because the mean of its divisors is an integer number (63326262).

Almost surely, 2^253305042 is an apocalyptic number.

253305042 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

253305042 is a wasteful number, since it uses less digits than its factorization.

253305042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42217512.

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 253305042 is about 15915.5597451048. The cubic root of 253305042 is about 632.7244420034.

Adding to 253305042 its reverse (240503352), we get a palindrome (493808394).

The spelling of 253305042 in words is "two hundred fifty-three million, three hundred five thousand, forty-two".