125504011 has 2 divisors, whose sum is σ = 125504012. Its totient is φ = 125504010.

The previous prime is 125504003. The next prime is 125504039. The reversal of 125504011 is 110405521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125504011 - 2³ = 125504003 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 125504011.

It is not a weakly prime, because it can be changed into another prime (125544011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62752005 + 62752006.

It is an arithmetic number, because the mean of its divisors is an integer number (62752006).

Almost surely, 2^125504011 is an apocalyptic number.

125504011 is a deficient number, since it is larger than the sum of its proper divisors (1).

125504011 is an equidigital number, since it uses as much as digits as its factorization.

125504011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 125504011 is about 11202.8572694648. The cubic root of 125504011 is about 500.6711134770.

Adding to 125504011 its reverse (110405521), we get a palindrome (235909532).

It can be divided in two parts, 12550 and 4011, that added together give a palindrome (16561).

The spelling of 125504011 in words is "one hundred twenty-five million, five hundred four thousand, eleven".