53506406 has 4 divisors (see below), whose sum is σ = 80259612. Its totient is φ = 26753202.

The previous prime is 53506393. The next prime is 53506417. The reversal of 53506406 is 60460535.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13376600 + ... + 13376603.

It is an arithmetic number, because the mean of its divisors is an integer number (20064903).

Almost surely, 2^53506406 is an apocalyptic number.

53506406 is a deficient number, since it is larger than the sum of its proper divisors (26753206).

53506406 is a wasteful number, since it uses less digits than its factorization.

53506406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26753205.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 53506406 is about 7314.8073112010. The cubic root of 53506406 is about 376.8211409457.

The spelling of 53506406 in words is "fifty-three million, five hundred six thousand, four hundred six".