55086402 has 32 divisors (see below), whose sum is σ = 126415872. Its totient is φ = 15675984.

The previous prime is 55086401. The next prime is 55086407. The reversal of 55086402 is 20468055.

It is a self number, because there is not a number n which added to its sum of digits gives 55086402.

It is not an unprimeable number, because it can be changed into a prime (55086401) 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, 8553 + ... + 13539.

It is an arithmetic number, because the mean of its divisors is an integer number (3950496).

Almost surely, 2^55086402 is an apocalyptic number.

55086402 is an abundant number, since it is smaller than the sum of its proper divisors (71329470).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55086402 is a wasteful number, since it uses less digits than its factorization.

55086402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5262.

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 55086402 is about 7422.0214227662. The cubic root of 55086402 is about 380.4942829166.

The spelling of 55086402 in words is "fifty-five million, eighty-six thousand, four hundred two".