54777579 has 4 divisors (see below), whose sum is σ = 73036776. Its totient is φ = 36518384.

The previous prime is 54777577. The next prime is 54777637. The reversal of 54777579 is 97577745.

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

It is a cyclic number.

It is not a de Polignac number, because 54777579 - 2¹ = 54777577 is a prime.

It is a super-2 number, since 2×54777579² = 6001166322202482, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (54777577) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9129594 + ... + 9129599.

It is an arithmetic number, because the mean of its divisors is an integer number (18259194).

Almost surely, 2^54777579 is an apocalyptic number.

54777579 is a deficient number, since it is larger than the sum of its proper divisors (18259197).

54777579 is a wasteful number, since it uses less digits than its factorization.

54777579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18259196.

The product of its digits is 2160900, while the sum is 51.

The square root of 54777579 is about 7401.1876749614. The cubic root of 54777579 is about 379.7819131806.

The spelling of 54777579 in words is "fifty-four million, seven hundred seventy-seven thousand, five hundred seventy-nine".