42265644725 has 24 divisors (see below), whose sum is σ = 54230997000. Its totient is φ = 32637911040.

The previous prime is 42265644709. The next prime is 42265644737. The reversal of 42265644725 is 52744656224.

It can be written as a sum of positive squares in 12 ways, for example, as 32201943601 + 10063701124 = 179449^2 + 100318^2 .

It is not a de Polignac number, because 42265644725 - 2⁴ = 42265644709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42265644725.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4729061 + ... + 4737989.

It is an arithmetic number, because the mean of its divisors is an integer number (2259624875).

Almost surely, 2^42265644725 is an apocalyptic number.

It is an amenable number.

42265644725 is a deficient number, since it is larger than the sum of its proper divisors (11965352275).

42265644725 is a wasteful number, since it uses less digits than its factorization.

42265644725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15497 (or 15492 counting only the distinct ones).

The product of its digits is 3225600, while the sum is 47.

The spelling of 42265644725 in words is "forty-two billion, two hundred sixty-five million, six hundred forty-four thousand, seven hundred twenty-five".