125523997 has 2 divisors, whose sum is σ = 125523998. Its totient is φ = 125523996.

The previous prime is 125523989. The next prime is 125524027. The reversal of 125523997 is 799325521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 123409881 + 2114116 = 11109^2 + 1454^2 .

It is a cyclic number.

It is not a de Polignac number, because 125523997 - 2³ = 125523989 is a prime.

It is a super-3 number, since 3×125523997³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125523907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62761998 + 62761999.

It is an arithmetic number, because the mean of its divisors is an integer number (62761999).

Almost surely, 2^125523997 is an apocalyptic number.

It is an amenable number.

125523997 is a deficient number, since it is larger than the sum of its proper divisors (1).

125523997 is an equidigital number, since it uses as much as digits as its factorization.

125523997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 170100, while the sum is 43.

The square root of 125523997 is about 11203.7492385362. The cubic root of 125523997 is about 500.6976886749.

It can be divided in two parts, 1255 and 23997, that added together give a palindrome (25252).

The spelling of 125523997 in words is "one hundred twenty-five million, five hundred twenty-three thousand, nine hundred ninety-seven".