25511151027 has 16 divisors (see below), whose sum is σ = 35403690240. Its totient is φ = 16320219552.

The previous prime is 25511151023. The next prime is 25511151047. The reversal of 25511151027 is 72015111552.

It is not a de Polignac number, because 25511151027 - 2² = 25511151023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25511150985 and 25511151003.

It is not an unprimeable number, because it can be changed into a prime (25511151023) 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, 885303 + ... + 913664.

It is an arithmetic number, because the mean of its divisors is an integer number (2212730640).

Almost surely, 2^25511151027 is an apocalyptic number.

25511151027 is a deficient number, since it is larger than the sum of its proper divisors (9892539213).

25511151027 is a wasteful number, since it uses less digits than its factorization.

25511151027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1799162.

The product of its (nonzero) digits is 3500, while the sum is 30.

Adding to 25511151027 its reverse (72015111552), we get a palindrome (97526262579).

The spelling of 25511151027 in words is "twenty-five billion, five hundred eleven million, one hundred fifty-one thousand, twenty-seven".