54640120 has 32 divisors (see below), whose sum is σ = 126266400. Its totient is φ = 21264768.

The previous prime is 54640093. The next prime is 54640123. The reversal of 54640120 is 2104645.

It is a super-2 number, since 2×54640120² = 5971085427228800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 54640091 and 54640100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54640123) 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, 16980 + ... + 19939.

It is an arithmetic number, because the mean of its divisors is an integer number (3945825).

Almost surely, 2^54640120 is an apocalyptic number.

It is an amenable number.

54640120 is an abundant number, since it is smaller than the sum of its proper divisors (71626280).

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

54640120 is a wasteful number, since it uses less digits than its factorization.

54640120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36967 (or 36963 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 54640120 is about 7391.8955620328. The cubic root of 54640120 is about 379.4639718425.

Adding to 54640120 its reverse (2104645), we get a palindrome (56744765).

The spelling of 54640120 in words is "fifty-four million, six hundred forty thousand, one hundred twenty".