54345540 has 24 divisors (see below), whose sum is σ = 152167680. Its totient is φ = 14492128.

The previous prime is 54345523. The next prime is 54345553. The reversal of 54345540 is 4554345.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 54345498 and 54345507.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 452820 + ... + 452939.

It is an arithmetic number, because the mean of its divisors is an integer number (6340320).

Almost surely, 2^54345540 is an apocalyptic number.

It is an amenable number.

54345540 is an abundant number, since it is smaller than the sum of its proper divisors (97822140).

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

54345540 is a wasteful number, since it uses less digits than its factorization.

54345540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 905771 (or 905769 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 30.

The square root of 54345540 is about 7371.9427561532. The cubic root of 54345540 is about 378.7808109214.

Adding to 54345540 its reverse (4554345), we get a palindrome (58899885).

The spelling of 54345540 in words is "fifty-four million, three hundred forty-five thousand, five hundred forty".