45223501 has 4 divisors (see below), whose sum is σ = 45277372. Its totient is φ = 45169632.

The previous prime is 45223429. The next prime is 45223523. The reversal of 45223501 is 10532254.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10532254 = 2 ⋅5266127.

It can be written as a sum of positive squares in 2 ways, for example, as 23377225 + 21846276 = 4835^2 + 4674^2 .

It is a cyclic number.

It is not a de Polignac number, because 45223501 - 2¹¹ = 45221453 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 (45223561) 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, 25656 + ... + 27361.

It is an arithmetic number, because the mean of its divisors is an integer number (11319343).

Almost surely, 2^45223501 is an apocalyptic number.

It is an amenable number.

45223501 is a deficient number, since it is larger than the sum of its proper divisors (53871).

45223501 is an equidigital number, since it uses as much as digits as its factorization.

45223501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53870.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 45223501 is about 6724.8420799302. The cubic root of 45223501 is about 356.2772243071.

Adding to 45223501 its reverse (10532254), we get a palindrome (55755755).

The spelling of 45223501 in words is "forty-five million, two hundred twenty-three thousand, five hundred one".