54989615 has 8 divisors (see below), whose sum is σ = 66279600. Its totient is φ = 43796992.

The previous prime is 54989587. The next prime is 54989617. The reversal of 54989615 is 51698945.

54989615 = T₁₀ + T₁₁ + ... + T₆₉₀.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 54989615 - 2²⁰ = 53941039 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 54989615.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54989617) 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, 23090 + ... + 25359.

It is an arithmetic number, because the mean of its divisors is an integer number (8284950).

Almost surely, 2^54989615 is an apocalyptic number.

54989615 is a deficient number, since it is larger than the sum of its proper divisors (11289985).

54989615 is a wasteful number, since it uses less digits than its factorization.

54989615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48681.

The product of its digits is 388800, while the sum is 47.

The square root of 54989615 is about 7415.4982974848. The cubic root of 54989615 is about 380.2713090172.

The spelling of 54989615 in words is "fifty-four million, nine hundred eighty-nine thousand, six hundred fifteen".