45811511 has 4 divisors (see below), whose sum is σ = 46786272. Its totient is φ = 44836752.

The previous prime is 45811499. The next prime is 45811517. The reversal of 45811511 is 11511854.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45811511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45811517) 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, 487310 + ... + 487403.

It is an arithmetic number, because the mean of its divisors is an integer number (11696568).

Almost surely, 2^45811511 is an apocalyptic number.

45811511 is a deficient number, since it is larger than the sum of its proper divisors (974761).

45811511 is an equidigital number, since it uses as much as digits as its factorization.

45811511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974760.

The product of its digits is 800, while the sum is 26.

The square root of 45811511 is about 6768.4201258492. The cubic root of 45811511 is about 357.8147221222.

The spelling of 45811511 in words is "forty-five million, eight hundred eleven thousand, five hundred eleven".