25788030477 has 32 divisors (see below), whose sum is σ = 38461395456. Its totient is φ = 15234139200.

The previous prime is 25788030469. The next prime is 25788030479. The reversal of 25788030477 is 77403088752.

It is a happy number.

It is not a de Polignac number, because 25788030477 - 2³ = 25788030469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25788030479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 678223 + ... + 715235.

It is an arithmetic number, because the mean of its divisors is an integer number (1201918608).

Almost surely, 2^25788030477 is an apocalyptic number.

It is an amenable number.

25788030477 is a deficient number, since it is larger than the sum of its proper divisors (12673364979).

25788030477 is a wasteful number, since it uses less digits than its factorization.

25788030477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37561.

The product of its (nonzero) digits is 2634240, while the sum is 51.

The spelling of 25788030477 in words is "twenty-five billion, seven hundred eighty-eight million, thirty thousand, four hundred seventy-seven".