25046510551 has 2 divisors, whose sum is σ = 25046510552. Its totient is φ = 25046510550.

The previous prime is 25046510549. The next prime is 25046510557. The reversal of 25046510551 is 15501564052.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25046510551 - 2¹ = 25046510549 is a prime.

Together with 25046510549, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25046510557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12523255275 + 12523255276.

It is an arithmetic number, because the mean of its divisors is an integer number (12523255276).

Almost surely, 2^25046510551 is an apocalyptic number.

25046510551 is a deficient number, since it is larger than the sum of its proper divisors (1).

25046510551 is an equidigital number, since it uses as much as digits as its factorization.

25046510551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30000, while the sum is 34.

The spelling of 25046510551 in words is "twenty-five billion, forty-six million, five hundred ten thousand, five hundred fifty-one".