45661253 has 4 divisors (see below), whose sum is σ = 49812288. Its totient is φ = 41510220.

The previous prime is 45661247. The next prime is 45661267. The reversal of 45661253 is 35216654.

45661253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 45661253 - 2¹⁰ = 45660229 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 (45660253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2075501 + ... + 2075522.

It is an arithmetic number, because the mean of its divisors is an integer number (12453072).

Almost surely, 2^45661253 is an apocalyptic number.

It is an amenable number.

45661253 is a deficient number, since it is larger than the sum of its proper divisors (4151035).

45661253 is a wasteful number, since it uses less digits than its factorization.

45661253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4151034.

The product of its digits is 21600, while the sum is 32.

The square root of 45661253 is about 6757.3110776403. The cubic root of 45661253 is about 357.4230926550.

The spelling of 45661253 in words is "forty-five million, six hundred sixty-one thousand, two hundred fifty-three".