25552755013 has 2 divisors, whose sum is σ = 25552755014. Its totient is φ = 25552755012.

The previous prime is 25552754977. The next prime is 25552755043. The reversal of 25552755013 is 31055725552.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24692036769 + 860718244 = 157137^2 + 29338^2 .

It is a cyclic number.

It is not a de Polignac number, because 25552755013 - 2⁹ = 25552754501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25552755043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12776377506 + 12776377507.

It is an arithmetic number, because the mean of its divisors is an integer number (12776377507).

Almost surely, 2^25552755013 is an apocalyptic number.

It is an amenable number.

25552755013 is a deficient number, since it is larger than the sum of its proper divisors (1).

25552755013 is an equidigital number, since it uses as much as digits as its factorization.

25552755013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 262500, while the sum is 40.

The spelling of 25552755013 in words is "twenty-five billion, five hundred fifty-two million, seven hundred fifty-five thousand, thirteen".