54013915 has 4 divisors (see below), whose sum is σ = 64816704. Its totient is φ = 43211128.

The previous prime is 54013907. The next prime is 54013931. The reversal of 54013915 is 51931045.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 54013915 - 2³ = 54013907 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5401387 + ... + 5401396.

It is an arithmetic number, because the mean of its divisors is an integer number (16204176).

Almost surely, 2^54013915 is an apocalyptic number.

54013915 is a deficient number, since it is larger than the sum of its proper divisors (10802789).

54013915 is a wasteful number, since it uses less digits than its factorization.

54013915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10802788.

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 54013915 is about 7349.4159631905. The cubic root of 54013915 is about 378.0087784791.

It can be divided in two parts, 5401 and 3915, that added together give a triangular number (9316 = T₁₃₆).

The spelling of 54013915 in words is "fifty-four million, thirteen thousand, nine hundred fifteen".