20150255101 has 2 divisors, whose sum is σ = 20150255102. Its totient is φ = 20150255100.

The previous prime is 20150255089. The next prime is 20150255179. The reversal of 20150255101 is 10155205102.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10905624900 + 9244630201 = 104430^2 + 96149^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20150255101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20150255201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10075127550 + 10075127551.

It is an arithmetic number, because the mean of its divisors is an integer number (10075127551).

Almost surely, 2^20150255101 is an apocalyptic number.

It is an amenable number.

20150255101 is a deficient number, since it is larger than the sum of its proper divisors (1).

20150255101 is an equidigital number, since it uses as much as digits as its factorization.

20150255101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 500, while the sum is 22.

The spelling of 20150255101 in words is "twenty billion, one hundred fifty million, two hundred fifty-five thousand, one hundred one".