55076639 has 2 divisors, whose sum is σ = 55076640. Its totient is φ = 55076638.

The previous prime is 55076629. The next prime is 55076641. The reversal of 55076639 is 93667055.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55076639 - 2¹² = 55072543 is a prime.

Together with 55076641, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 55076596 and 55076605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55076629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27538319 + 27538320.

It is an arithmetic number, because the mean of its divisors is an integer number (27538320).

Almost surely, 2^55076639 is an apocalyptic number.

55076639 is a deficient number, since it is larger than the sum of its proper divisors (1).

55076639 is an equidigital number, since it uses as much as digits as its factorization.

55076639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 170100, while the sum is 41.

The square root of 55076639 is about 7421.3636887030. The cubic root of 55076639 is about 380.4718031694.

The spelling of 55076639 in words is "fifty-five million, seventy-six thousand, six hundred thirty-nine".