125564427 has 12 divisors (see below), whose sum is σ = 185795064. Its totient is φ = 81667680.

The previous prime is 125564419. The next prime is 125564441. The reversal of 125564427 is 724465521.

It is a happy number.

125564427 is a `hidden beast` number, since 1 + 2 + 5 + 5 + 644 + 2 + 7 = 666.

It is not a de Polignac number, because 125564427 - 2³ = 125564419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 125564391 and 125564400.

It is not an unprimeable number, because it can be changed into a prime (125564497) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 169773 + ... + 170510.

It is an arithmetic number, because the mean of its divisors is an integer number (15482922).

Almost surely, 2^125564427 is an apocalyptic number.

125564427 is a deficient number, since it is larger than the sum of its proper divisors (60230637).

125564427 is a wasteful number, since it uses less digits than its factorization.

125564427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340330 (or 340327 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 125564427 is about 11205.5533999888. The cubic root of 125564427 is about 500.7514394451.

The spelling of 125564427 in words is "one hundred twenty-five million, five hundred sixty-four thousand, four hundred twenty-seven".