54661311 has 10 divisors (see below), whose sum is σ = 81654672. Its totient is φ = 36440820.

The previous prime is 54661283. The next prime is 54661331. The reversal of 54661311 is 11316645.

54661311 is a `hidden beast` number, since 5 + 46 + 613 + 1 + 1 = 666.

It is not a de Polignac number, because 54661311 - 2¹⁵ = 54628543 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54661331) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 337335 + ... + 337496.

Almost surely, 2^54661311 is an apocalyptic number.

54661311 is a deficient number, since it is larger than the sum of its proper divisors (26993361).

54661311 is an equidigital number, since it uses as much as digits as its factorization.

54661311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674843 (or 674834 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 54661311 is about 7393.3288172514. The cubic root of 54661311 is about 379.5130211596.

Adding to 54661311 its reverse (11316645), we get a palindrome (65977956).

The spelling of 54661311 in words is "fifty-four million, six hundred sixty-one thousand, three hundred eleven".