45521454 has 64 divisors (see below), whose sum is σ = 108011520. Its totient is φ = 12636000.

The previous prime is 45521447. The next prime is 45521491. The reversal of 45521454 is 45412554.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38289 + ... + 39459.

It is an arithmetic number, because the mean of its divisors is an integer number (1687680).

Almost surely, 2^45521454 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45521454, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54005760).

45521454 is an abundant number, since it is smaller than the sum of its proper divisors (62490066).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45521454 is a wasteful number, since it uses less digits than its factorization.

45521454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1237.

The product of its digits is 16000, while the sum is 30.

The square root of 45521454 is about 6746.9588704838. The cubic root of 45521454 is about 357.0579510315.

Subtracting from 45521454 its reverse (45412554), we obtain a square (108900 = 330²).

It can be divided in two parts, 4552 and 1454, that added together give a palindrome (6006).

The spelling of 45521454 in words is "forty-five million, five hundred twenty-one thousand, four hundred fifty-four".