55072406 has 8 divisors (see below), whose sum is σ = 84167424. Its totient is φ = 27016600.

The previous prime is 55072361. The next prime is 55072417. The reversal of 55072406 is 60427055.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 259670 + ... + 259881.

It is an arithmetic number, because the mean of its divisors is an integer number (10520928).

Almost surely, 2^55072406 is an apocalyptic number.

55072406 is a deficient number, since it is larger than the sum of its proper divisors (29095018).

55072406 is a wasteful number, since it uses less digits than its factorization.

55072406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519606.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 55072406 is about 7421.0784930494. The cubic root of 55072406 is about 380.4620556707.

The spelling of 55072406 in words is "fifty-five million, seventy-two thousand, four hundred six".