55026687 has 8 divisors (see below), whose sum is σ = 73947136. Its totient is φ = 36395352.

The previous prime is 55026661. The next prime is 55026689. The reversal of 55026687 is 78662055.

It is a happy number.

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

It is not a de Polignac number, because 55026687 - 2⁶ = 55026623 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 (55026689) 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, 71833 + ... + 72594.

It is an arithmetic number, because the mean of its divisors is an integer number (9243392).

Almost surely, 2^55026687 is an apocalyptic number.

55026687 is a deficient number, since it is larger than the sum of its proper divisors (18920449).

55026687 is a wasteful number, since it uses less digits than its factorization.

55026687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144557.

The product of its (nonzero) digits is 100800, while the sum is 39.

The square root of 55026687 is about 7417.9975060659. The cubic root of 55026687 is about 380.3567448531.

The spelling of 55026687 in words is "fifty-five million, twenty-six thousand, six hundred eighty-seven".