45440653 has 4 divisors (see below), whose sum is σ = 45865440. Its totient is φ = 45015868.

The previous prime is 45440621. The next prime is 45440657. The reversal of 45440653 is 35604454.

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, and also an emirpimes, since its reverse is a distinct semiprime: 35604454 = 2 ⋅17802227.

It is a cyclic number.

It is not a de Polignac number, because 45440653 - 2⁵ = 45440621 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 (45440657) 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, 212233 + ... + 212446.

It is an arithmetic number, because the mean of its divisors is an integer number (11466360).

Almost surely, 2^45440653 is an apocalyptic number.

It is an amenable number.

45440653 is a deficient number, since it is larger than the sum of its proper divisors (424787).

45440653 is a wasteful number, since it uses less digits than its factorization.

45440653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424786.

The product of its (nonzero) digits is 28800, while the sum is 31.

The square root of 45440653 is about 6740.9682538935. The cubic root of 45440653 is about 356.8465655281.

The spelling of 45440653 in words is "forty-five million, four hundred forty thousand, six hundred fifty-three".