53406047 has 4 divisors (see below), whose sum is σ = 53645760. Its totient is φ = 53166336.

The previous prime is 53406013. The next prime is 53406071. The reversal of 53406047 is 74060435.

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 53406047 - 2⁶ = 53405983 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 (53406007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119522 + ... + 119967.

It is an arithmetic number, because the mean of its divisors is an integer number (13411440).

Almost surely, 2^53406047 is an apocalyptic number.

53406047 is a deficient number, since it is larger than the sum of its proper divisors (239713).

53406047 is a wasteful number, since it uses less digits than its factorization.

53406047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239712.

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 53406047 is about 7307.9441021398. The cubic root of 53406047 is about 376.5853993191.

The spelling of 53406047 in words is "fifty-three million, four hundred six thousand, forty-seven".