45255644 has 48 divisors (see below), whose sum is σ = 95934720. Its totient is φ = 18247680.

The previous prime is 45255643. The next prime is 45255647. The reversal of 45255644 is 44655254.

It is a super-3 number, since 3×45255644³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45255643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136559 + ... + 136889.

It is an arithmetic number, because the mean of its divisors is an integer number (1998640).

Almost surely, 2^45255644 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45255644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47967360).

45255644 is an abundant number, since it is smaller than the sum of its proper divisors (50679076).

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

45255644 is a wasteful number, since it uses less digits than its factorization.

45255644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618 (or 616 counting only the distinct ones).

The product of its digits is 96000, while the sum is 35.

The square root of 45255644 is about 6727.2315256724. The cubic root of 45255644 is about 356.3616133709.

The spelling of 45255644 in words is "forty-five million, two hundred fifty-five thousand, six hundred forty-four".