54361520 has 20 divisors (see below), whose sum is σ = 126390720. Its totient is φ = 21744576.

The previous prime is 54361513. The next prime is 54361523. The reversal of 54361520 is 2516345.

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 54361520.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54361523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 339680 + ... + 339839.

It is an arithmetic number, because the mean of its divisors is an integer number (6319536).

Almost surely, 2^54361520 is an apocalyptic number.

It is an amenable number.

54361520 is an abundant number, since it is smaller than the sum of its proper divisors (72029200).

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

54361520 is a wasteful number, since it uses less digits than its factorization.

54361520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679532 (or 679526 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 54361520 is about 7373.0265156176. The cubic root of 54361520 is about 378.8179334045.

Adding to 54361520 its reverse (2516345), we get a palindrome (56877865).

The spelling of 54361520 in words is "fifty-four million, three hundred sixty-one thousand, five hundred twenty".