215250250106 has 12 divisors (see below), whose sum is σ = 342985261038. Its totient is φ = 101294235072.

The previous prime is 215250250037. The next prime is 215250250177. The reversal of 215250250106 is 601052052512.

It can be written as a sum of positive squares in 3 ways, for example, as 203008819225 + 12241430881 = 450565^2 + 110641^2 .

It is a super-2 number, since 2×215250250106² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 186202061 + ... + 186203216.

Almost surely, 2^215250250106 is an apocalyptic number.

215250250106 is a deficient number, since it is larger than the sum of its proper divisors (127735010932).

215250250106 is a wasteful number, since it uses less digits than its factorization.

215250250106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372405313 (or 372405296 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 29.

The spelling of 215250250106 in words is "two hundred fifteen billion, two hundred fifty million, two hundred fifty thousand, one hundred six".