125630565 has 16 divisors (see below), whose sum is σ = 211588800. Its totient is φ = 63476352.

The previous prime is 125630551. The next prime is 125630579. The reversal of 125630565 is 565036521.

It is an interprime number because it is at equal distance from previous prime (125630551) and next prime (125630579).

It is not a de Polignac number, because 125630565 - 2⁶ = 125630501 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220120 + ... + 220689.

It is an arithmetic number, because the mean of its divisors is an integer number (13224300).

Almost surely, 2^125630565 is an apocalyptic number.

125630565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

125630565 is a deficient number, since it is larger than the sum of its proper divisors (85958235).

125630565 is a wasteful number, since it uses less digits than its factorization.

125630565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440836.

The product of its (nonzero) digits is 27000, while the sum is 33.

The square root of 125630565 is about 11208.5041374842. The cubic root of 125630565 is about 500.8393435497.

The spelling of 125630565 in words is "one hundred twenty-five million, six hundred thirty thousand, five hundred sixty-five".