52040045 has 8 divisors (see below), whose sum is σ = 63777024. Its totient is φ = 40746064.

The previous prime is 52040033. The next prime is 52040047. The reversal of 52040045 is 54004025.

It is a happy number.

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 52040045 - 2¹⁴ = 52023661 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52039999 and 52040026.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52040047) 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, 110489 + ... + 110958.

It is an arithmetic number, because the mean of its divisors is an integer number (7972128).

Almost surely, 2^52040045 is an apocalyptic number.

It is an amenable number.

52040045 is a deficient number, since it is larger than the sum of its proper divisors (11736979).

52040045 is a wasteful number, since it uses less digits than its factorization.

52040045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221499.

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 52040045 is about 7213.8786377371. The cubic root of 52040045 is about 373.3469041800.

The spelling of 52040045 in words is "fifty-two million, forty thousand, forty-five".