45443511 has 40 divisors (see below), whose sum is σ = 71177040. Its totient is φ = 28864512.

The previous prime is 45443477. The next prime is 45443527. The reversal of 45443511 is 11534454.

It is a happy number.

It is not a de Polignac number, because 45443511 - 2¹⁹ = 44919223 is a prime.

It is a super-2 number, since 2×45443511² = 4130225384014242, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45442511) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 176695 + ... + 176951.

It is an arithmetic number, because the mean of its divisors is an integer number (1779426).

Almost surely, 2^45443511 is an apocalyptic number.

45443511 is a deficient number, since it is larger than the sum of its proper divisors (25733529).

45443511 is a wasteful number, since it uses less digits than its factorization.

45443511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365 (or 356 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 45443511 is about 6741.1802379109. The cubic root of 45443511 is about 356.8540466860.

Adding to 45443511 its reverse (11534454), we get a palindrome (56977965).

It can be divided in two parts, 45443 and 511, that added together give a palindrome (45954).

The spelling of 45443511 in words is "forty-five million, four hundred forty-three thousand, five hundred eleven".