55539679 has 16 divisors (see below), whose sum is σ = 63866880. Its totient is φ = 47869920.

The previous prime is 55539647. The next prime is 55539689. The reversal of 55539679 is 97693555.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 55539679 - 2⁵ = 55539647 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 (55539689) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15954 + ... + 19120.

It is an arithmetic number, because the mean of its divisors is an integer number (3991680).

Almost surely, 2^55539679 is an apocalyptic number.

55539679 is a deficient number, since it is larger than the sum of its proper divisors (8327201).

55539679 is a wasteful number, since it uses less digits than its factorization.

55539679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3270.

The product of its digits is 1275750, while the sum is 49.

The square root of 55539679 is about 7452.4948171736. The cubic root of 55539679 is about 381.5350624829.

The spelling of 55539679 in words is "fifty-five million, five hundred thirty-nine thousand, six hundred seventy-nine".