45610561 has 4 divisors (see below), whose sum is σ = 45788292. Its totient is φ = 45432832.

The previous prime is 45610553. The next prime is 45610567. The reversal of 45610561 is 16501654.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 34152336 + 11458225 = 5844^2 + 3385^2 .

It is a cyclic number.

It is not a de Polignac number, because 45610561 - 2³ = 45610553 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 (45610567) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88480 + ... + 88993.

It is an arithmetic number, because the mean of its divisors is an integer number (11447073).

Almost surely, 2^45610561 is an apocalyptic number.

It is an amenable number.

45610561 is a deficient number, since it is larger than the sum of its proper divisors (177731).

45610561 is a wasteful number, since it uses less digits than its factorization.

45610561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177730.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 45610561 is about 6753.5591357446. The cubic root of 45610561 is about 357.2907762360.

The spelling of 45610561 in words is "forty-five million, six hundred ten thousand, five hundred sixty-one".