45821254 has 4 divisors (see below), whose sum is σ = 68731884. Its totient is φ = 22910626.

The previous prime is 45821249. The next prime is 45821261. The reversal of 45821254 is 45212854.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45212854 = 2 ⋅22606427.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11455312 + ... + 11455315.

It is an arithmetic number, because the mean of its divisors is an integer number (17182971).

Almost surely, 2^45821254 is an apocalyptic number.

45821254 is a deficient number, since it is larger than the sum of its proper divisors (22910630).

45821254 is a wasteful number, since it uses less digits than its factorization.

45821254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22910629.

The product of its digits is 12800, while the sum is 31.

The square root of 45821254 is about 6769.1398271863. The cubic root of 45821254 is about 357.8400865022.

Subtracting from 45821254 its reverse (45212854), we obtain a square (608400 = 780²).

It can be divided in two parts, 458 and 21254, that added together give a palindrome (21712).

The spelling of 45821254 in words is "forty-five million, eight hundred twenty-one thousand, two hundred fifty-four".