54415220 has 24 divisors (see below), whose sum is σ = 114422784. Its totient is φ = 21737376.

The previous prime is 54415213. The next prime is 54415243. The reversal of 54415220 is 2251445.

It is a happy number.

It is a super-2 number, since 2×54415220² = 5922032335296800, which contains 22 as substring.

It is a congruent number.

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, 20489 + ... + 22991.

It is an arithmetic number, because the mean of its divisors is an integer number (4767616).

Almost surely, 2^54415220 is an apocalyptic number.

It is an amenable number.

54415220 is an abundant number, since it is smaller than the sum of its proper divisors (60007564).

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

54415220 is a wasteful number, since it uses less digits than its factorization.

54415220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3599 (or 3597 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 54415220 is about 7376.6672691670. The cubic root of 54415220 is about 378.9426283994.

Adding to 54415220 its reverse (2251445), we get a palindrome (56666665).

The spelling of 54415220 in words is "fifty-four million, four hundred fifteen thousand, two hundred twenty".