125567457 has 16 divisors (see below), whose sum is σ = 178557120. Its totient is φ = 78216192.

The previous prime is 125567443. The next prime is 125567459. The reversal of 125567457 is 754765521.

It is a happy number.

It is not a de Polignac number, because 125567457 - 2¹⁹ = 125043169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125567459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1768 + ... + 15945.

It is an arithmetic number, because the mean of its divisors is an integer number (11159820).

Almost surely, 2^125567457 is an apocalyptic number.

125567457 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

125567457 is a deficient number, since it is larger than the sum of its proper divisors (52989663).

125567457 is a wasteful number, since it uses less digits than its factorization.

125567457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17872.

The product of its digits is 294000, while the sum is 42.

The square root of 125567457 is about 11205.6885999924. The cubic root of 125567457 is about 500.7554672968.

The spelling of 125567457 in words is "one hundred twenty-five million, five hundred sixty-seven thousand, four hundred fifty-seven".