25772555737709 has 16 divisors (see below), whose sum is σ = 28368703894464. Its totient is φ = 23218669689600.

The previous prime is 25772555737703. The next prime is 25772555737711. The reversal of 25772555737709 is 90773755527752.

It is not a de Polignac number, because 25772555737709 - 2¹⁶ = 25772555672173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25772555737703) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6471167 + ... + 9665459.

It is an arithmetic number, because the mean of its divisors is an integer number (1773043993404).

Almost surely, 2^{25772555737709} is an apocalyptic number.

It is an amenable number.

25772555737709 is a deficient number, since it is larger than the sum of its proper divisors (2596148156755).

25772555737709 is a wasteful number, since it uses less digits than its factorization.

25772555737709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3200908.

The product of its (nonzero) digits is 1134472500, while the sum is 71.

The spelling of 25772555737709 in words is "twenty-five trillion, seven hundred seventy-two billion, five hundred fifty-five million, seven hundred thirty-seven thousand, seven hundred nine".