45229725 has 48 divisors (see below), whose sum is σ = 85381440. Its totient is φ = 23457600.

The previous prime is 45229703. The next prime is 45229739. The reversal of 45229725 is 52792254.

It is a happy number.

45229725 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 45229725 - 2¹² = 45225629 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45229725.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 24070 + ... + 25880.

It is an arithmetic number, because the mean of its divisors is an integer number (1778780).

Almost surely, 2^45229725 is an apocalyptic number.

45229725 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

45229725 is a deficient number, since it is larger than the sum of its proper divisors (40151715).

45229725 is a wasteful number, since it uses less digits than its factorization.

45229725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1867 (or 1856 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 45229725 is about 6725.3048258053. The cubic root of 45229725 is about 356.2935680788.

It can be divided in two parts, 45229 and 725, that added together give a palindrome (45954).

The spelling of 45229725 in words is "forty-five million, two hundred twenty-nine thousand, seven hundred twenty-five".