25767224072 has 108 divisors (see below), whose sum is σ = 53326796445. Its totient is φ = 11670232896.

The previous prime is 25767224051. The next prime is 25767224083. The reversal of 25767224072 is 27042276752.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 25751904676 + 15319396 = 160474^2 + 3914^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=113506.

It is a super-2 number, since 2×25767224072² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 26 ways as a sum of consecutive naturals, for example, 250167173 + ... + 250167275.

Almost surely, 2^25767224072 is an apocalyptic number.

It is an amenable number.

25767224072 is an abundant number, since it is smaller than the sum of its proper divisors (27559572373).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25767224072 is a wasteful number, since it uses less digits than its factorization.

25767224072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308 (or 153 counting only the distinct ones).

The product of its (nonzero) digits is 658560, while the sum is 44.

The spelling of 25767224072 in words is "twenty-five billion, seven hundred sixty-seven million, two hundred twenty-four thousand, seventy-two".