54195639 has 8 divisors (see below), whose sum is σ = 74214000. Its totient is φ = 35153856.

The previous prime is 54195629. The next prime is 54195641. The reversal of 54195639 is 93659145.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 54195639 - 2¹¹ = 54193591 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 54195639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54195629) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244014 + ... + 244235.

It is an arithmetic number, because the mean of its divisors is an integer number (9276750).

Almost surely, 2^54195639 is an apocalyptic number.

54195639 is a deficient number, since it is larger than the sum of its proper divisors (20018361).

54195639 is a wasteful number, since it uses less digits than its factorization.

54195639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488289.

The product of its digits is 145800, while the sum is 42.

The square root of 54195639 is about 7361.7687412741. The cubic root of 54195639 is about 378.4322272262.

The spelling of 54195639 in words is "fifty-four million, one hundred ninety-five thousand, six hundred thirty-nine".