125532311 has 2 divisors, whose sum is σ = 125532312. Its totient is φ = 125532310.

The previous prime is 125532287. The next prime is 125532359. The reversal of 125532311 is 113235521.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125532311 is a prime.

It is a super-2 number, since 2×125532311² = 31516722210001442, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125532391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62766155 + 62766156.

It is an arithmetic number, because the mean of its divisors is an integer number (62766156).

Almost surely, 2^125532311 is an apocalyptic number.

125532311 is a deficient number, since it is larger than the sum of its proper divisors (1).

125532311 is an equidigital number, since it uses as much as digits as its factorization.

125532311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 900, while the sum is 23.

The square root of 125532311 is about 11204.1202689011. The cubic root of 125532311 is about 500.7087428923.

Adding to 125532311 its reverse (113235521), we get a palindrome (238767832).

The spelling of 125532311 in words is "one hundred twenty-five million, five hundred thirty-two thousand, three hundred eleven".