55678870 has 16 divisors (see below), whose sum is σ = 107931600. Its totient is φ = 20558304.

The previous prime is 55678849. The next prime is 55678871. The reversal of 55678870 is 7887655.

It is a self number, because there is not a number n which added to its sum of digits gives 55678870.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55678871) 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, 214020 + ... + 214279.

It is an arithmetic number, because the mean of its divisors is an integer number (6745725).

Almost surely, 2^55678870 is an apocalyptic number.

55678870 is a deficient number, since it is larger than the sum of its proper divisors (52252730).

55678870 is a wasteful number, since it uses less digits than its factorization.

55678870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428319.

The product of its (nonzero) digits is 470400, while the sum is 46.

The square root of 55678870 is about 7461.8275241391. The cubic root of 55678870 is about 381.8535251589.

The spelling of 55678870 in words is "fifty-five million, six hundred seventy-eight thousand, eight hundred seventy".