54001815 has 64 divisors (see below), whose sum is σ = 105062400. Its totient is φ = 23151744.

The previous prime is 54001813. The next prime is 54001847. The reversal of 54001815 is 51810045.

It is not a de Polignac number, because 54001815 - 2¹ = 54001813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54001813) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 142296 + ... + 142674.

It is an arithmetic number, because the mean of its divisors is an integer number (1641600).

Almost surely, 2^54001815 is an apocalyptic number.

54001815 is a deficient number, since it is larger than the sum of its proper divisors (51060585).

54001815 is a wasteful number, since it uses less digits than its factorization.

54001815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476.

The product of its (nonzero) digits is 800, while the sum is 24.

The square root of 54001815 is about 7348.5927224197. The cubic root of 54001815 is about 377.9805496557.

The spelling of 54001815 in words is "fifty-four million, one thousand, eight hundred fifteen".