125583645091 has 2 divisors, whose sum is σ = 125583645092. Its totient is φ = 125583645090.

The previous prime is 125583645067. The next prime is 125583645101. The reversal of 125583645091 is 190546385521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125583645091 - 2²³ = 125575256483 is a prime.

It is not a weakly prime, because it can be changed into another prime (125583645991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62791822545 + 62791822546.

It is an arithmetic number, because the mean of its divisors is an integer number (62791822546).

Almost surely, 2^125583645091 is an apocalyptic number.

125583645091 is a deficient number, since it is larger than the sum of its proper divisors (1).

125583645091 is an equidigital number, since it uses as much as digits as its factorization.

125583645091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296000, while the sum is 49.

The spelling of 125583645091 in words is "one hundred twenty-five billion, five hundred eighty-three million, six hundred forty-five thousand, ninety-one".