45423653 has 4 divisors (see below), whose sum is σ = 49553088. Its totient is φ = 41294220.

The previous prime is 45423647. The next prime is 45423673. The reversal of 45423653 is 35632454.

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 not a de Polignac number, because 45423653 - 2¹⁸ = 45161509 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 (45423673) 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, 2064701 + ... + 2064722.

It is an arithmetic number, because the mean of its divisors is an integer number (12388272).

Almost surely, 2^45423653 is an apocalyptic number.

It is an amenable number.

45423653 is a deficient number, since it is larger than the sum of its proper divisors (4129435).

45423653 is a wasteful number, since it uses less digits than its factorization.

45423653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4129434.

The product of its digits is 43200, while the sum is 32.

The square root of 45423653 is about 6739.7071894853. The cubic root of 45423653 is about 356.8020595049.

The spelling of 45423653 in words is "forty-five million, four hundred twenty-three thousand, six hundred fifty-three".