45511047 has 24 divisors (see below), whose sum is σ = 67947984. Its totient is φ = 29337984.

The previous prime is 45511021. The next prime is 45511079. The reversal of 45511047 is 74011554.

It is a happy number.

45511047 is a `hidden beast` number, since 4 + 551 + 104 + 7 = 666.

It is not a de Polignac number, because 45511047 - 2⁷ = 45510919 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45511047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45511247) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34168 + ... + 35474.

It is an arithmetic number, because the mean of its divisors is an integer number (2831166).

Almost surely, 2^45511047 is an apocalyptic number.

45511047 is a deficient number, since it is larger than the sum of its proper divisors (22436937).

45511047 is a wasteful number, since it uses less digits than its factorization.

45511047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1439 (or 1436 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 27.

The square root of 45511047 is about 6746.1875900393. The cubic root of 45511047 is about 357.0307390616.

The spelling of 45511047 in words is "forty-five million, five hundred eleven thousand, forty-seven".