101780250625 has 20 divisors (see below), whose sum is σ = 127346823472. Its totient is φ = 81320346000.

The previous prime is 101780250623. The next prime is 101780250653. The reversal of 101780250625 is 526052087101.

It is not a de Polignac number, because 101780250625 - 2¹ = 101780250623 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101780250623) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 388414 + ... + 595336.

Almost surely, 2^101780250625 is an apocalyptic number.

It is an amenable number.

101780250625 is a deficient number, since it is larger than the sum of its proper divisors (25566572847).

101780250625 is an frugal number, since it uses more digits than its factorization.

101780250625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207730 (or 207715 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 37.

The spelling of 101780250625 in words is "one hundred one billion, seven hundred eighty million, two hundred fifty thousand, six hundred twenty-five".