45549548 has 24 divisors (see below), whose sum is σ = 88261824. Its totient is φ = 20394000.

The previous prime is 45549541. The next prime is 45549557. The reversal of 45549548 is 84594554.

It is a super-2 number, since 2×45549548² = 4149522646008608, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 45549499 and 45549508.

It is not an unprimeable number, because it can be changed into a prime (45549541) 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, 4778 + ... + 10673.

It is an arithmetic number, because the mean of its divisors is an integer number (3677576).

Almost surely, 2^45549548 is an apocalyptic number.

It is an amenable number.

45549548 is a deficient number, since it is larger than the sum of its proper divisors (42712276).

45549548 is a wasteful number, since it uses less digits than its factorization.

45549548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15533 (or 15531 counting only the distinct ones).

The product of its digits is 576000, while the sum is 44.

The square root of 45549548 is about 6749.0405244005. The cubic root of 45549548 is about 357.1313898337.

The spelling of 45549548 in words is "forty-five million, five hundred forty-nine thousand, five hundred forty-eight".