55633407 has 8 divisors (see below), whose sum is σ = 74360880. Its totient is φ = 36997440.

The previous prime is 55633393. The next prime is 55633429. The reversal of 55633407 is 70433655.

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

It is not a de Polignac number, because 55633407 - 2¹² = 55629311 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55633447) 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 7 ways as a sum of consecutive naturals, for example, 21444 + ... + 23897.

It is an arithmetic number, because the mean of its divisors is an integer number (9295110).

Almost surely, 2^55633407 is an apocalyptic number.

55633407 is a deficient number, since it is larger than the sum of its proper divisors (18727473).

55633407 is a wasteful number, since it uses less digits than its factorization.

55633407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45753.

The product of its (nonzero) digits is 37800, while the sum is 33.

The square root of 55633407 is about 7458.7805303548. The cubic root of 55633407 is about 381.7495663085.

The spelling of 55633407 in words is "fifty-five million, six hundred thirty-three thousand, four hundred seven".