45042563 has 4 divisors (see below), whose sum is σ = 45202008. Its totient is φ = 44883120.

The previous prime is 45042553. The next prime is 45042577. The reversal of 45042563 is 36524054.

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

It is a cyclic number.

It is not a de Polignac number, because 45042563 - 2¹⁰ = 45041539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45042553) 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, 79298 + ... + 79863.

It is an arithmetic number, because the mean of its divisors is an integer number (11300502).

Almost surely, 2^45042563 is an apocalyptic number.

45042563 is a deficient number, since it is larger than the sum of its proper divisors (159445).

45042563 is a wasteful number, since it uses less digits than its factorization.

45042563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159444.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 45042563 is about 6711.3756414017. The cubic root of 45042563 is about 355.8014373702.

The spelling of 45042563 in words is "forty-five million, forty-two thousand, five hundred sixty-three".