125555303 has 2 divisors, whose sum is σ = 125555304. Its totient is φ = 125555302.

The previous prime is 125555299. The next prime is 125555323. The reversal of 125555303 is 303555521.

It is a weak prime.

It is an emirp because it is prime and its reverse (303555521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 125555303 - 2² = 125555299 is a prime.

It is a super-2 number, since 2×125555303² = 31528268222843618, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125555323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62777651 + 62777652.

It is an arithmetic number, because the mean of its divisors is an integer number (62777652).

Almost surely, 2^125555303 is an apocalyptic number.

125555303 is a deficient number, since it is larger than the sum of its proper divisors (1).

125555303 is an equidigital number, since it uses as much as digits as its factorization.

125555303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11250, while the sum is 29.

The square root of 125555303 is about 11205.1462730301. The cubic root of 125555303 is about 500.7393103018.

The spelling of 125555303 in words is "one hundred twenty-five million, five hundred fifty-five thousand, three hundred three".