55432406 has 4 divisors (see below), whose sum is σ = 83148612. Its totient is φ = 27716202.

The previous prime is 55432397. The next prime is 55432423. The reversal of 55432406 is 60423455.

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

It is a Curzon number.

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, 13858100 + ... + 13858103.

It is an arithmetic number, because the mean of its divisors is an integer number (20787153).

Almost surely, 2^55432406 is an apocalyptic number.

55432406 is a deficient number, since it is larger than the sum of its proper divisors (27716206).

55432406 is a wasteful number, since it uses less digits than its factorization.

55432406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27716205.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 55432406 is about 7445.2942184980. The cubic root of 55432406 is about 381.2892635008.

The spelling of 55432406 in words is "fifty-five million, four hundred thirty-two thousand, four hundred six".