253442245 has 8 divisors (see below), whose sum is σ = 347577984. Its totient is φ = 173788944.

The previous prime is 253442219. The next prime is 253442249. The reversal of 253442245 is 542244352.

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

It is not a de Polignac number, because 253442245 - 2⁵ = 253442213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253442249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3620569 + ... + 3620638.

It is an arithmetic number, because the mean of its divisors is an integer number (43447248).

Almost surely, 2^253442245 is an apocalyptic number.

It is an amenable number.

253442245 is a deficient number, since it is larger than the sum of its proper divisors (94135739).

253442245 is an equidigital number, since it uses as much as digits as its factorization.

253442245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7241219.

The product of its digits is 38400, while the sum is 31.

The square root of 253442245 is about 15919.8695032340. The cubic root of 253442245 is about 632.8386600515.

Adding to 253442245 its reverse (542244352), we get a palindrome (795686597).

The spelling of 253442245 in words is "two hundred fifty-three million, four hundred forty-two thousand, two hundred forty-five".