25555350877 has 12 divisors (see below), whose sum is σ = 29868554496. Its totient is φ = 21800764440.

The previous prime is 25555350869. The next prime is 25555350907. The reversal of 25555350877 is 77805355552.

It is not a de Polignac number, because 25555350877 - 2³ = 25555350869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25555300877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1225533 + ... + 1246210.

It is an arithmetic number, because the mean of its divisors is an integer number (2489046208).

Almost surely, 2^25555350877 is an apocalyptic number.

It is an amenable number.

25555350877 is a deficient number, since it is larger than the sum of its proper divisors (4313203619).

25555350877 is a wasteful number, since it uses less digits than its factorization.

25555350877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2471968 (or 2471961 counting only the distinct ones).

The product of its (nonzero) digits is 7350000, while the sum is 52.

The spelling of 25555350877 in words is "twenty-five billion, five hundred fifty-five million, three hundred fifty thousand, eight hundred seventy-seven".