54015479 has 4 divisors (see below), whose sum is σ = 61731984. Its totient is φ = 46298976.

The previous prime is 54015473. The next prime is 54015497. The reversal of 54015479 is 97451045.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97451045 = 5 ⋅19490209.

It is a cyclic number.

It is not a de Polignac number, because 54015479 - 2⁴ = 54015463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54015473) 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, 3858242 + ... + 3858255.

It is an arithmetic number, because the mean of its divisors is an integer number (15432996).

Almost surely, 2^54015479 is an apocalyptic number.

54015479 is a deficient number, since it is larger than the sum of its proper divisors (7716505).

54015479 is an equidigital number, since it uses as much as digits as its factorization.

54015479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7716504.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 54015479 is about 7349.5223654330. The cubic root of 54015479 is about 378.0124269218.

The spelling of 54015479 in words is "fifty-four million, fifteen thousand, four hundred seventy-nine".