45432513 has 24 divisors (see below), whose sum is σ = 75182016. Its totient is φ = 25898400.

The previous prime is 45432509. The next prime is 45432523. The reversal of 45432513 is 31523454.

45432513 is nontrivially palindromic in base 13.

It is not a de Polignac number, because 45432513 - 2² = 45432509 is a prime.

It is a super-3 number, since 3×45432513³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (45432523) 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, 41098 + ... + 42188.

It is an arithmetic number, because the mean of its divisors is an integer number (3132584).

Almost surely, 2^45432513 is an apocalyptic number.

It is an amenable number.

45432513 is a deficient number, since it is larger than the sum of its proper divisors (29749503).

45432513 is a wasteful number, since it uses less digits than its factorization.

45432513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1765 (or 1762 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 45432513 is about 6740.3644560216. The cubic root of 45432513 is about 356.8252563823.

Adding to 45432513 its reverse (31523454), we get a palindrome (76955967).

It can be divided in two parts, 4543 and 2513, that added together give a square (7056 = 84²).

The spelling of 45432513 in words is "forty-five million, four hundred thirty-two thousand, five hundred thirteen".