54599978 has 4 divisors (see below), whose sum is σ = 81899970. Its totient is φ = 27299988.

The previous prime is 54599969. The next prime is 54599983. The reversal of 54599978 is 87999545.

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

It can be written as a sum of positive squares in only one way, i.e., 39100009 + 15499969 = 6253^2 + 3937^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13649993 + ... + 13649996.

Almost surely, 2^54599978 is an apocalyptic number.

54599978 is a deficient number, since it is larger than the sum of its proper divisors (27299992).

54599978 is a wasteful number, since it uses less digits than its factorization.

54599978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27299991.

The product of its digits is 4082400, while the sum is 56.

The square root of 54599978 is about 7389.1797921014. The cubic root of 54599978 is about 379.3710232026.

The spelling of 54599978 in words is "fifty-four million, five hundred ninety-nine thousand, nine hundred seventy-eight".