45052561 has 8 divisors (see below), whose sum is σ = 47110464. Its totient is φ = 43002960.

The previous prime is 45052549. The next prime is 45052571. The reversal of 45052561 is 16525054.

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 45052561 - 2¹³ = 45044369 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45052531) 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, 10791 + ... + 14371.

It is an arithmetic number, because the mean of its divisors is an integer number (5888808).

Almost surely, 2^45052561 is an apocalyptic number.

It is an amenable number.

45052561 is a deficient number, since it is larger than the sum of its proper divisors (2057903).

45052561 is a wasteful number, since it uses less digits than its factorization.

45052561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4151.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 45052561 is about 6712.1204548190. The cubic root of 45052561 is about 355.8277609138.

The spelling of 45052561 in words is "forty-five million, fifty-two thousand, five hundred sixty-one".