45511493 has 4 divisors (see below), whose sum is σ = 45528000. Its totient is φ = 45494988.

The previous prime is 45511483. The next prime is 45511547. The reversal of 45511493 is 39411554.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 45511493 - 2¹⁶ = 45445957 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 (45511483) 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, 3005 + ... + 10002.

It is an arithmetic number, because the mean of its divisors is an integer number (11382000).

Almost surely, 2^45511493 is an apocalyptic number.

It is an amenable number.

45511493 is a deficient number, since it is larger than the sum of its proper divisors (16507).

45511493 is a wasteful number, since it uses less digits than its factorization.

45511493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16506.

The product of its digits is 10800, while the sum is 32.

The square root of 45511493 is about 6746.2206456652. The cubic root of 45511493 is about 357.0319053366.

The spelling of 45511493 in words is "forty-five million, five hundred eleven thousand, four hundred ninety-three".