125433557 has 2 divisors, whose sum is σ = 125433558. Its totient is φ = 125433556.

The previous prime is 125433551. The next prime is 125433569. The reversal of 125433557 is 755334521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84805681 + 40627876 = 9209^2 + 6374^2 .

It is a cyclic number.

It is not a de Polignac number, because 125433557 - 2¹⁸ = 125171413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125433551) 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, 62716778 + 62716779.

It is an arithmetic number, because the mean of its divisors is an integer number (62716779).

Almost surely, 2^125433557 is an apocalyptic number.

It is an amenable number.

125433557 is a deficient number, since it is larger than the sum of its proper divisors (1).

125433557 is an equidigital number, since it uses as much as digits as its factorization.

125433557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 63000, while the sum is 35.

The square root of 125433557 is about 11199.7123623779. The cubic root of 125433557 is about 500.5774089412.

The spelling of 125433557 in words is "one hundred twenty-five million, four hundred thirty-three thousand, five hundred fifty-seven".