55867838890 has 16 divisors (see below), whose sum is σ = 100599723432. Its totient is φ = 22338777024.

The previous prime is 55867838869. The next prime is 55867838893. The reversal of 55867838890 is 9883876855.

55867838890 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 15257931529 + 40609907361 = 123523^2 + 201519^2 .

It is not an unprimeable number, because it can be changed into a prime (55867838893) 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, 1016709 + ... + 1070248.

Almost surely, 2^55867838890 is an apocalyptic number.

55867838890 is a deficient number, since it is larger than the sum of its proper divisors (44731884542).

55867838890 is a wasteful number, since it uses less digits than its factorization.

55867838890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2089641.

The product of its (nonzero) digits is 116121600, while the sum is 67.

The spelling of 55867838890 in words is "fifty-five billion, eight hundred sixty-seven million, eight hundred thirty-eight thousand, eight hundred ninety".