54420015 has 32 divisors (see below), whose sum is σ = 94449600. Its totient is φ = 26597376.

The previous prime is 54419999. The next prime is 54420049. The reversal of 54420015 is 51002445.

Added to its reverse (51002445) it gives a triangular number (105422460 = T₁₄₅₂₀).

It is not a de Polignac number, because 54420015 - 2⁴ = 54419999 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 54419973 and 54420000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28119 + ... + 29991.

It is an arithmetic number, because the mean of its divisors is an integer number (2951550).

Almost surely, 2^54420015 is an apocalyptic number.

54420015 is a deficient number, since it is larger than the sum of its proper divisors (40029585).

54420015 is a wasteful number, since it uses less digits than its factorization.

54420015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2043.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 54420015 is about 7376.9922732778. The cubic root of 54420015 is about 378.9537587200.

Adding to 54420015 its reverse (51002445), we get a triangular number (105422460 = T₁₄₅₂₀).

The spelling of 54420015 in words is "fifty-four million, four hundred twenty thousand, fifteen".