25785256151 has 32 divisors (see below), whose sum is σ = 27168196608. Its totient is φ = 24455208960.

The previous prime is 25785256103. The next prime is 25785256157. The reversal of 25785256151 is 15165258752.

It is a cyclic number.

It is not a de Polignac number, because 25785256151 - 2⁶ = 25785256087 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25785256096 and 25785256105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25785256157) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 47661941 + ... + 47662481.

It is an arithmetic number, because the mean of its divisors is an integer number (849006144).

Almost surely, 2^25785256151 is an apocalyptic number.

25785256151 is a deficient number, since it is larger than the sum of its proper divisors (1382940457).

25785256151 is a wasteful number, since it uses less digits than its factorization.

25785256151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 891.

The product of its digits is 840000, while the sum is 47.

The spelling of 25785256151 in words is "twenty-five billion, seven hundred eighty-five million, two hundred fifty-six thousand, one hundred fifty-one".