45250521 has 8 divisors (see below), whose sum is σ = 61061280. Its totient is φ = 29803392.

The previous prime is 45250493. The next prime is 45250523. The reversal of 45250521 is 12505254.

It is a happy number.

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

It is not a de Polignac number, because 45250521 - 2¹⁷ = 45119449 is a prime.

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

It is a junction number, because it is equal to n+sod(n) for n = 45250491 and 45250500.

It is not an unprimeable number, because it can be changed into a prime (45250523) 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, 90616 + ... + 91113.

It is an arithmetic number, because the mean of its divisors is an integer number (7632660).

Almost surely, 2^45250521 is an apocalyptic number.

It is an amenable number.

45250521 is a deficient number, since it is larger than the sum of its proper divisors (15810759).

45250521 is a wasteful number, since it uses less digits than its factorization.

45250521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181815.

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 45250521 is about 6726.8507490504. The cubic root of 45250521 is about 356.3481659915.

Adding to 45250521 its reverse (12505254), we get a palindrome (57755775).

It can be divided in two parts, 4 and 5250521, that added together give a palindrome (5250525).

The spelling of 45250521 in words is "forty-five million, two hundred fifty thousand, five hundred twenty-one".