54929939 has 4 divisors (see below), whose sum is σ = 55006224. Its totient is φ = 54853656.

The previous prime is 54929899. The next prime is 54929971. The reversal of 54929939 is 93992945.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93992945 = 5 ⋅18798589.

It is a cyclic number.

It is not a de Polignac number, because 54929939 - 2²⁰ = 53881363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54929239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37052 + ... + 38505.

It is an arithmetic number, because the mean of its divisors is an integer number (13751556).

Almost surely, 2^54929939 is an apocalyptic number.

54929939 is a deficient number, since it is larger than the sum of its proper divisors (76285).

54929939 is an equidigital number, since it uses as much as digits as its factorization.

54929939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76284.

The product of its digits is 787320, while the sum is 50.

The square root of 54929939 is about 7411.4734702352. The cubic root of 54929939 is about 380.1336994909.

It can be divided in two parts, 549 and 29939, that multiplied together give a triangular number (16436511 = T₅₇₃₃).

The spelling of 54929939 in words is "fifty-four million, nine hundred twenty-nine thousand, nine hundred thirty-nine".