54149699 has 4 divisors (see below), whose sum is σ = 56016960. Its totient is φ = 52282440.

The previous prime is 54149651. The next prime is 54149731. The reversal of 54149699 is 99694145.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 54149699 - 2¹² = 54145603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54149629) 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, 933587 + ... + 933644.

It is an arithmetic number, because the mean of its divisors is an integer number (14004240).

Almost surely, 2^54149699 is an apocalyptic number.

54149699 is a deficient number, since it is larger than the sum of its proper divisors (1867261).

54149699 is a wasteful number, since it uses less digits than its factorization.

54149699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1867260.

The product of its digits is 349920, while the sum is 47.

The square root of 54149699 is about 7358.6479056957. The cubic root of 54149699 is about 378.3252684902.

The spelling of 54149699 in words is "fifty-four million, one hundred forty-nine thousand, six hundred ninety-nine".