125350513 has 2 divisors, whose sum is σ = 125350514. Its totient is φ = 125350512.

The previous prime is 125350507. The next prime is 125350517. The reversal of 125350513 is 315053521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119508624 + 5841889 = 10932^2 + 2417^2 .

It is an emirp because it is prime and its reverse (315053521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 125350513 - 2¹⁷ = 125219441 is a prime.

It is a super-2 number, since 2×125350513² = 31425502218726338, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (125350517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62675256 + 62675257.

It is an arithmetic number, because the mean of its divisors is an integer number (62675257).

Almost surely, 2^125350513 is an apocalyptic number.

It is an amenable number.

125350513 is a deficient number, since it is larger than the sum of its proper divisors (1).

125350513 is an equidigital number, since it uses as much as digits as its factorization.

125350513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2250, while the sum is 25.

The square root of 125350513 is about 11196.0043319034. The cubic root of 125350513 is about 500.4669145126.

The spelling of 125350513 in words is "one hundred twenty-five million, three hundred fifty thousand, five hundred thirteen".