53969929 has 4 divisors (see below), whose sum is σ = 58121476. Its totient is φ = 49818384.

The previous prime is 53969911. The next prime is 53969969. The reversal of 53969929 is 92996935.

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

It can be written as a sum of positive squares in 2 ways, for example, as 13520329 + 40449600 = 3677^2 + 6360^2 .

It is a cyclic number.

It is not a de Polignac number, because 53969929 - 2⁷ = 53969801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53969969) 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, 2075754 + ... + 2075779.

It is an arithmetic number, because the mean of its divisors is an integer number (14530369).

Almost surely, 2^53969929 is an apocalyptic number.

It is an amenable number.

53969929 is a deficient number, since it is larger than the sum of its proper divisors (4151547).

53969929 is a wasteful number, since it uses less digits than its factorization.

53969929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4151546.

The product of its digits is 1180980, while the sum is 52.

The square root of 53969929 is about 7346.4228710305. The cubic root of 53969929 is about 377.9061406707.

The spelling of 53969929 in words is "fifty-three million, nine hundred sixty-nine thousand, nine hundred twenty-nine".