54787771 has 8 divisors (see below), whose sum is σ = 57246624. Its totient is φ = 52335360.

The previous prime is 54787769. The next prime is 54787829. The reversal of 54787771 is 17778745.

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 54787771 - 2¹ = 54787769 is a prime.

It is a super-2 number, since 2×54787771² = 6003399702296882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54787721) 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, 26155 + ... + 28171.

It is an arithmetic number, because the mean of its divisors is an integer number (7155828).

Almost surely, 2^54787771 is an apocalyptic number.

54787771 is a deficient number, since it is larger than the sum of its proper divisors (2458853).

54787771 is a wasteful number, since it uses less digits than its factorization.

54787771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3221.

The product of its digits is 384160, while the sum is 46.

The square root of 54787771 is about 7401.8761810773. The cubic root of 54787771 is about 379.8054659875.

The spelling of 54787771 in words is "fifty-four million, seven hundred eighty-seven thousand, seven hundred seventy-one".