25712724527 has 16 divisors (see below), whose sum is σ = 29526998592. Its totient is φ = 21933918720.

The previous prime is 25712724511. The next prime is 25712724547. The reversal of 25712724527 is 72542721752.

It is a happy number.

It is not a de Polignac number, because 25712724527 - 2⁴ = 25712724511 is a prime.

It is a super-2 number, since 2×25712724527² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25712724547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1544327 + ... + 1560887.

It is an arithmetic number, because the mean of its divisors is an integer number (1845437412).

Almost surely, 2^25712724527 is an apocalyptic number.

25712724527 is a deficient number, since it is larger than the sum of its proper divisors (3814274065).

25712724527 is a wasteful number, since it uses less digits than its factorization.

25712724527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17618.

The product of its digits is 548800, while the sum is 44.

The spelling of 25712724527 in words is "twenty-five billion, seven hundred twelve million, seven hundred twenty-four thousand, five hundred twenty-seven".