125026553 has 2 divisors, whose sum is σ = 125026554. Its totient is φ = 125026552.

The previous prime is 125026549. The next prime is 125026579. The reversal of 125026553 is 355620521.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100741369 + 24285184 = 10037^2 + 4928^2 .

It is a cyclic number.

It is not a de Polignac number, because 125026553 - 2² = 125026549 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (125026513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62513276 + 62513277.

It is an arithmetic number, because the mean of its divisors is an integer number (62513277).

Almost surely, 2^125026553 is an apocalyptic number.

It is an amenable number.

125026553 is a deficient number, since it is larger than the sum of its proper divisors (1).

125026553 is an equidigital number, since it uses as much as digits as its factorization.

125026553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 125026553 is about 11181.5273107031. The cubic root of 125026553 is about 500.0354014934.

It can be divided in two parts, 12 and 5026553, that multiplied together give a triangular number (60318636 = T₁₀₉₈₃).

The spelling of 125026553 in words is "one hundred twenty-five million, twenty-six thousand, five hundred fifty-three".