125677553 has 2 divisors, whose sum is σ = 125677554. Its totient is φ = 125677552.

The previous prime is 125677499. The next prime is 125677579. The reversal of 125677553 is 355776521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80425024 + 45252529 = 8968^2 + 6727^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125677553 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 125677553.

It is not a weakly prime, because it can be changed into another prime (125877553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62838776 + 62838777.

It is an arithmetic number, because the mean of its divisors is an integer number (62838777).

Almost surely, 2^125677553 is an apocalyptic number.

It is an amenable number.

125677553 is a deficient number, since it is larger than the sum of its proper divisors (1).

125677553 is an equidigital number, since it uses as much as digits as its factorization.

125677553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 220500, while the sum is 41.

The square root of 125677553 is about 11210.6000285444. The cubic root of 125677553 is about 500.9017766201.

The spelling of 125677553 in words is "one hundred twenty-five million, six hundred seventy-seven thousand, five hundred fifty-three".