125503331 has 2 divisors, whose sum is σ = 125503332. Its totient is φ = 125503330.

The previous prime is 125503319. The next prime is 125503349. The reversal of 125503331 is 133305521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125503331 - 2¹⁴ = 125486947 is a prime.

It is a super-2 number, since 2×125503331² = 31502172184191122, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 125503297 and 125503306.

It is not a weakly prime, because it can be changed into another prime (125503361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62751665 + 62751666.

It is an arithmetic number, because the mean of its divisors is an integer number (62751666).

Almost surely, 2^125503331 is an apocalyptic number.

125503331 is a deficient number, since it is larger than the sum of its proper divisors (1).

125503331 is an equidigital number, since it uses as much as digits as its factorization.

125503331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1350, while the sum is 23.

The square root of 125503331 is about 11202.8269200234. The cubic root of 125503331 is about 500.6702092378.

Adding to 125503331 its reverse (133305521), we get a palindrome (258808852).

The spelling of 125503331 in words is "one hundred twenty-five million, five hundred three thousand, three hundred thirty-one".