45520171 has 4 divisors (see below), whose sum is σ = 45562912. Its totient is φ = 45477432.

The previous prime is 45520157. The next prime is 45520177. The reversal of 45520171 is 17102554.

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 45520171 - 2¹⁹ = 44995883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45520177) 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, 19731 + ... + 21916.

It is an arithmetic number, because the mean of its divisors is an integer number (11390728).

Almost surely, 2^45520171 is an apocalyptic number.

45520171 is a deficient number, since it is larger than the sum of its proper divisors (42741).

45520171 is a wasteful number, since it uses less digits than its factorization.

45520171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42740.

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 45520171 is about 6746.8637899397. The cubic root of 45520171 is about 357.0545964985.

The spelling of 45520171 in words is "forty-five million, five hundred twenty thousand, one hundred seventy-one".