54005861 has 16 divisors (see below), whose sum is σ = 67006464. Its totient is φ = 42384384.

The previous prime is 54005851. The next prime is 54005873. The reversal of 54005861 is 16850045.

It is a happy number.

It is not a de Polignac number, because 54005861 - 2¹⁸ = 53743717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54005851) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9221 + ... + 13893.

It is an arithmetic number, because the mean of its divisors is an integer number (4187904).

Almost surely, 2^54005861 is an apocalyptic number.

It is an amenable number.

54005861 is a deficient number, since it is larger than the sum of its proper divisors (13000603).

54005861 is a wasteful number, since it uses less digits than its factorization.

54005861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4820.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 54005861 is about 7348.8680080676. The cubic root of 54005861 is about 377.9899892835.

The spelling of 54005861 in words is "fifty-four million, five thousand, eight hundred sixty-one".