25543314064951 has 2 divisors, whose sum is σ = 25543314064952. Its totient is φ = 25543314064950.

The previous prime is 25543314064927. The next prime is 25543314064963. The reversal of 25543314064951 is 15946041334552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25543314064951 - 2⁷ = 25543314064823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25543314064981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12771657032475 + 12771657032476.

It is an arithmetic number, because the mean of its divisors is an integer number (12771657032476).

Almost surely, 2^{25543314064951} is an apocalyptic number.

25543314064951 is a deficient number, since it is larger than the sum of its proper divisors (1).

25543314064951 is an equidigital number, since it uses as much as digits as its factorization.

25543314064951 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776000, while the sum is 52.

The spelling of 25543314064951 in words is "twenty-five trillion, five hundred forty-three billion, three hundred fourteen million, sixty-four thousand, nine hundred fifty-one".