53442245 has 8 divisors (see below), whose sum is σ = 65864184. Its totient is φ = 41598144.

The previous prime is 53442227. The next prime is 53442251. The reversal of 53442245 is 54224435.

It can be written as a sum of positive squares in 4 ways, for example, as 29008996 + 24433249 = 5386^2 + 4943^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 53442245 - 2²² = 49247941 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 144254 + ... + 144623.

It is an arithmetic number, because the mean of its divisors is an integer number (8233023).

Almost surely, 2^53442245 is an apocalyptic number.

It is an amenable number.

53442245 is a deficient number, since it is larger than the sum of its proper divisors (12421939).

53442245 is a wasteful number, since it uses less digits than its factorization.

53442245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288919.

The product of its digits is 19200, while the sum is 29.

The square root of 53442245 is about 7310.4203025544. The cubic root of 53442245 is about 376.6704618443.

The spelling of 53442245 in words is "fifty-three million, four hundred forty-two thousand, two hundred forty-five".