54191929 has 4 divisors (see below), whose sum is σ = 59118480. Its totient is φ = 49265380.

The previous prime is 54191861. The next prime is 54191941. The reversal of 54191929 is 92919145.

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 54191929 - 2²⁵ = 20637497 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54191891 and 54191900.

It is not an unprimeable number, because it can be changed into a prime (54191989) 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, 2463259 + ... + 2463280.

It is an arithmetic number, because the mean of its divisors is an integer number (14779620).

Almost surely, 2^54191929 is an apocalyptic number.

It is an amenable number.

54191929 is a deficient number, since it is larger than the sum of its proper divisors (4926551).

54191929 is a wasteful number, since it uses less digits than its factorization.

54191929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4926550.

The product of its digits is 29160, while the sum is 40.

The square root of 54191929 is about 7361.5167594729. The cubic root of 54191929 is about 378.4235917490.

The spelling of 54191929 in words is "fifty-four million, one hundred ninety-one thousand, nine hundred twenty-nine".