45236521 has 8 divisors (see below), whose sum is σ = 49499424. Its totient is φ = 40998720.

The previous prime is 45236509. The next prime is 45236531. The reversal of 45236521 is 12563254.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 45236521 - 2⁷ = 45236393 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45236521.

It is not an unprimeable number, because it can be changed into a prime (45236531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2395 + ... + 9808.

It is an arithmetic number, because the mean of its divisors is an integer number (6187428).

Almost surely, 2^45236521 is an apocalyptic number.

It is an amenable number.

45236521 is a deficient number, since it is larger than the sum of its proper divisors (4262903).

45236521 is a wasteful number, since it uses less digits than its factorization.

45236521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12551.

The product of its digits is 7200, while the sum is 28.

The square root of 45236521 is about 6725.8100627359. The cubic root of 45236521 is about 356.3114121686.

Adding to 45236521 its reverse (12563254), we get a palindrome (57799775).

The spelling of 45236521 in words is "forty-five million, two hundred thirty-six thousand, five hundred twenty-one".