54515420 has 24 divisors (see below), whose sum is σ = 114657648. Its totient is φ = 21772800.

The previous prime is 54515401. The next prime is 54515423. The reversal of 54515420 is 2451545.

It is a self number, because there is not a number n which added to its sum of digits gives 54515420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54515423) 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, 14540 + ... + 17900.

It is an arithmetic number, because the mean of its divisors is an integer number (4777402).

Almost surely, 2^54515420 is an apocalyptic number.

It is an amenable number.

54515420 is an abundant number, since it is smaller than the sum of its proper divisors (60142228).

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

54515420 is a wasteful number, since it uses less digits than its factorization.

54515420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4181 (or 4179 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 54515420 is about 7383.4558304360. The cubic root of 54515420 is about 379.1750803323.

Adding to 54515420 its reverse (2451545), we get a palindrome (56966965).

The spelling of 54515420 in words is "fifty-four million, five hundred fifteen thousand, four hundred twenty".