125594549 has 2 divisors, whose sum is σ = 125594550. Its totient is φ = 125594548.

The previous prime is 125594537. The next prime is 125594591. The reversal of 125594549 is 945495521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 106296100 + 19298449 = 10310^2 + 4393^2 .

It is a cyclic number.

It is not a de Polignac number, because 125594549 - 2²⁰ = 124545973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125594149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62797274 + 62797275.

It is an arithmetic number, because the mean of its divisors is an integer number (62797275).

Almost surely, 2^125594549 is an apocalyptic number.

It is an amenable number.

125594549 is a deficient number, since it is larger than the sum of its proper divisors (1).

125594549 is an equidigital number, since it uses as much as digits as its factorization.

125594549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 324000, while the sum is 44.

The square root of 125594549 is about 11206.8973850928. The cubic root of 125594549 is about 500.7914784626.

The spelling of 125594549 in words is "one hundred twenty-five million, five hundred ninety-four thousand, five hundred forty-nine".