54861829 has 4 divisors (see below), whose sum is σ = 59849280. Its totient is φ = 49874380.

The previous prime is 54861809. The next prime is 54861853. The reversal of 54861829 is 92816845.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 54861829 - 2¹¹ = 54859781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54861809) 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, 2493709 + ... + 2493730.

It is an arithmetic number, because the mean of its divisors is an integer number (14962320).

Almost surely, 2^54861829 is an apocalyptic number.

It is an amenable number.

54861829 is a deficient number, since it is larger than the sum of its proper divisors (4987451).

54861829 is a wasteful number, since it uses less digits than its factorization.

54861829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4987450.

The product of its digits is 138240, while the sum is 43.

The square root of 54861829 is about 7406.8771422240. The cubic root of 54861829 is about 379.9765197865.

The spelling of 54861829 in words is "fifty-four million, eight hundred sixty-one thousand, eight hundred twenty-nine".