45512546 has 4 divisors (see below), whose sum is σ = 68268822. Its totient is φ = 22756272.

The previous prime is 45512539. The next prime is 45512549. The reversal of 45512546 is 64521554.

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

It can be written as a sum of positive squares in only one way, i.e., 41667025 + 3845521 = 6455^2 + 1961^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45512549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11378135 + ... + 11378138.

Almost surely, 2^45512546 is an apocalyptic number.

45512546 is a deficient number, since it is larger than the sum of its proper divisors (22756276).

45512546 is a wasteful number, since it uses less digits than its factorization.

45512546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22756275.

The product of its digits is 24000, while the sum is 32.

The square root of 45512546 is about 6746.2986889108. The cubic root of 45512546 is about 357.0346588660.

The spelling of 45512546 in words is "forty-five million, five hundred twelve thousand, five hundred forty-six".