55278695 has 16 divisors (see below), whose sum is σ = 70087680. Its totient is φ = 41738400.

The previous prime is 55278689. The next prime is 55278697. The reversal of 55278695 is 59687255.

It is not a de Polignac number, because 55278695 - 2⁶ = 55278631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55278697) 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, 28610 + ... + 30480.

It is an arithmetic number, because the mean of its divisors is an integer number (4380480).

Almost surely, 2^55278695 is an apocalyptic number.

55278695 is a deficient number, since it is larger than the sum of its proper divisors (14808985).

55278695 is a wasteful number, since it uses less digits than its factorization.

55278695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2206.

The product of its digits is 756000, while the sum is 47.

The square root of 55278695 is about 7434.9643576819. The cubic root of 55278695 is about 380.9365058848.

The spelling of 55278695 in words is "fifty-five million, two hundred seventy-eight thousand, six hundred ninety-five".