45664331 has 4 divisors (see below), whose sum is σ = 45894000. Its totient is φ = 45434664.

The previous prime is 45664303. The next prime is 45664337. The reversal of 45664331 is 13346654.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13346654 = 2 ⋅6673327.

It is a cyclic number.

It is not a de Polignac number, because 45664331 - 2¹⁸ = 45402187 is a prime.

It is a super-2 number, since 2×45664331² = 4170462251355122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45664337) 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, 114536 + ... + 114933.

It is an arithmetic number, because the mean of its divisors is an integer number (11473500).

Almost surely, 2^45664331 is an apocalyptic number.

45664331 is a deficient number, since it is larger than the sum of its proper divisors (229669).

45664331 is a wasteful number, since it uses less digits than its factorization.

45664331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229668.

The product of its digits is 25920, while the sum is 32.

The square root of 45664331 is about 6757.5388271175. The cubic root of 45664331 is about 357.4311237060.

The spelling of 45664331 in words is "forty-five million, six hundred sixty-four thousand, three hundred thirty-one".