125245501 has 2 divisors, whose sum is σ = 125245502. Its totient is φ = 125245500.

The previous prime is 125245499. The next prime is 125245607. The reversal of 125245501 is 105542521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 106626276 + 18619225 = 10326^2 + 4315^2 .

It is a cyclic number.

It is not a de Polignac number, because 125245501 - 2¹ = 125245499 is a prime.

Together with 125245499, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125240501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62622750 + 62622751.

It is an arithmetic number, because the mean of its divisors is an integer number (62622751).

Almost surely, 2^125245501 is an apocalyptic number.

It is an amenable number.

125245501 is a deficient number, since it is larger than the sum of its proper divisors (1).

125245501 is an equidigital number, since it uses as much as digits as its factorization.

125245501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 125245501 is about 11191.3136404982. The cubic root of 125245501 is about 500.3271206042.

The spelling of 125245501 in words is "one hundred twenty-five million, two hundred forty-five thousand, five hundred one".