208860051 has 16 divisors (see below), whose sum is σ = 288046080. Its totient is φ = 134475360.

The previous prime is 208860019. The next prime is 208860089. The reversal of 208860051 is 150068802.

It is not a de Polignac number, because 208860051 - 2⁵ = 208860019 is a prime.

It is a super-3 number, since 3×208860051³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (208860851) 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, 50365 + ... + 54353.

It is an arithmetic number, because the mean of its divisors is an integer number (18002880).

Almost surely, 2^208860051 is an apocalyptic number.

208860051 is a deficient number, since it is larger than the sum of its proper divisors (79186029).

208860051 is a wasteful number, since it uses less digits than its factorization.

208860051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4586.

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 208860051 is about 14451.9912468836. The cubic root of 208860051 is about 593.3147245844.

The spelling of 208860051 in words is "two hundred eight million, eight hundred sixty thousand, fifty-one".