53442545 has 16 divisors (see below), whose sum is σ = 69226752. Its totient is φ = 39372480.

The previous prime is 53442539. The next prime is 53442553. The reversal of 53442545 is 54524435.

It is not a de Polignac number, because 53442545 - 2²⁰ = 52393969 is a prime.

It is a super-2 number, since 2×53442545² = 5712211232154050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40364 + ... + 41666.

It is an arithmetic number, because the mean of its divisors is an integer number (4326672).

Almost surely, 2^53442545 is an apocalyptic number.

It is an amenable number.

53442545 is a deficient number, since it is larger than the sum of its proper divisors (15784207).

53442545 is a wasteful number, since it uses less digits than its factorization.

53442545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1952.

The product of its digits is 48000, while the sum is 32.

The square root of 53442545 is about 7310.4408211817. The cubic root of 53442545 is about 376.6711666608.

The spelling of 53442545 in words is "fifty-three million, four hundred forty-two thousand, five hundred forty-five".