54442861 has 6 divisors (see below), whose sum is σ = 59842286. Its totient is φ = 49493400.

The previous prime is 54442807. The next prime is 54442877. The reversal of 54442861 is 16824445.

It can be written as a sum of positive squares in only one way, i.e., 45024100 + 9418761 = 6710^2 + 3069^2 .

It is not a de Polignac number, because 54442861 - 2¹⁹ = 53918573 is a prime.

It is a super-2 number, since 2×54442861² = 5928050227730642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54442061) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 224850 + ... + 225091.

Almost surely, 2^54442861 is an apocalyptic number.

It is an amenable number.

54442861 is a deficient number, since it is larger than the sum of its proper divisors (5399425).

54442861 is a wasteful number, since it uses less digits than its factorization.

54442861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449963 (or 449952 counting only the distinct ones).

The product of its digits is 30720, while the sum is 34.

The square root of 54442861 is about 7378.5405738533. The cubic root of 54442861 is about 379.0067806725.

The spelling of 54442861 in words is "fifty-four million, four hundred forty-two thousand, eight hundred sixty-one".