8125523407 has 2 divisors, whose sum is σ = 8125523408. Its totient is φ = 8125523406.

The previous prime is 8125523389. The next prime is 8125523449. The reversal of 8125523407 is 7043255218.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8125523407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8125523207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4062761703 + 4062761704.

It is an arithmetic number, because the mean of its divisors is an integer number (4062761704).

Almost surely, 2^8125523407 is an apocalyptic number.

8125523407 is a deficient number, since it is larger than the sum of its proper divisors (1).

8125523407 is an equidigital number, since it uses as much as digits as its factorization.

8125523407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 67200, while the sum is 37.

The square root of 8125523407 is about 90141.6851794995. The cubic root of 8125523407 is about 2010.4060471062.

The spelling of 8125523407 in words is "eight billion, one hundred twenty-five million, five hundred twenty-three thousand, four hundred seven".