55905679 has 8 divisors (see below), whose sum is σ = 57808512. Its totient is φ = 54009120.

The previous prime is 55905677. The next prime is 55905697. The reversal of 55905679 is 97650955.

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

It is a cyclic number.

It is not a de Polignac number, because 55905679 - 2¹ = 55905677 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 (55905677) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22797 + ... + 25129.

It is an arithmetic number, because the mean of its divisors is an integer number (7226064).

Almost surely, 2^55905679 is an apocalyptic number.

55905679 is a deficient number, since it is larger than the sum of its proper divisors (1902833).

55905679 is a wasteful number, since it uses less digits than its factorization.

55905679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3137.

The product of its (nonzero) digits is 425250, while the sum is 46.

The square root of 55905679 is about 7477.0100307543. The cubic root of 55905679 is about 382.3713187255.

The spelling of 55905679 in words is "fifty-five million, nine hundred five thousand, six hundred seventy-nine".