54015870 has 16 divisors (see below), whose sum is σ = 129638160. Its totient is φ = 14404224.

The previous prime is 54015821. The next prime is 54015887. The reversal of 54015870 is 7851045.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 1800529 = 54015870 / (5 + 4 + 0 + 1 + 5 + 8 + 7 + 0).

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, 900235 + ... + 900294.

It is an arithmetic number, because the mean of its divisors is an integer number (8102385).

Almost surely, 2^54015870 is an apocalyptic number.

54015870 is an abundant number, since it is smaller than the sum of its proper divisors (75622290).

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

54015870 is a wasteful number, since it uses less digits than its factorization.

54015870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1800539.

The product of its (nonzero) digits is 5600, while the sum is 30.

The square root of 54015870 is about 7349.5489657529. The cubic root of 54015870 is about 378.0133390215.

The spelling of 54015870 in words is "fifty-four million, fifteen thousand, eight hundred seventy".