125203302551 has 2 divisors, whose sum is σ = 125203302552. Its totient is φ = 125203302550.

The previous prime is 125203302547. The next prime is 125203302563. The reversal of 125203302551 is 155203302521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125203302551 - 2² = 125203302547 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125203302151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62601651275 + 62601651276.

It is an arithmetic number, because the mean of its divisors is an integer number (62601651276).

Almost surely, 2^125203302551 is an apocalyptic number.

125203302551 is a deficient number, since it is larger than the sum of its proper divisors (1).

125203302551 is an equidigital number, since it uses as much as digits as its factorization.

125203302551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9000, while the sum is 29.

The spelling of 125203302551 in words is "one hundred twenty-five billion, two hundred three million, three hundred two thousand, five hundred fifty-one".