20125195007 has 4 divisors (see below), whose sum is σ = 20367667320. Its totient is φ = 19882722696.

The previous prime is 20125194997. The next prime is 20125195037. The reversal of 20125195007 is 70059152102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20125195007 - 2¹⁰ = 20125193983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20125195037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121236032 + ... + 121236197.

It is an arithmetic number, because the mean of its divisors is an integer number (5091916830).

Almost surely, 2^20125195007 is an apocalyptic number.

20125195007 is a deficient number, since it is larger than the sum of its proper divisors (242472313).

20125195007 is an equidigital number, since it uses as much as digits as its factorization.

20125195007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242472312.

The product of its (nonzero) digits is 6300, while the sum is 32.

The spelling of 20125195007 in words is "twenty billion, one hundred twenty-five million, one hundred ninety-five thousand, seven".