45511011 has 32 divisors (see below), whose sum is σ = 82987520. Its totient is φ = 24004512.

The previous prime is 45511009. The next prime is 45511013. The reversal of 45511011 is 11011554.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (45511009) and next prime (45511013).

It is not a de Polignac number, because 45511011 - 2¹ = 45511009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45511013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6805 + ... + 11718.

It is an arithmetic number, because the mean of its divisors is an integer number (2593360).

Almost surely, 2^45511011 is an apocalyptic number.

45511011 is a deficient number, since it is larger than the sum of its proper divisors (37476509).

45511011 is a wasteful number, since it uses less digits than its factorization.

45511011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18552 (or 18546 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 18.

The square root of 45511011 is about 6746.1849218651. The cubic root of 45511011 is about 357.0306449225.

Adding to 45511011 its reverse (11011554), we get a palindrome (56522565).

It can be divided in two parts, 4551 and 1011, that multiplied together give a triangular number (4601061 = T₃₀₃₃).

The spelling of 45511011 in words is "forty-five million, five hundred eleven thousand, eleven".