955294136521 has 2 divisors, whose sum is σ = 955294136522. Its totient is φ = 955294136520.

The previous prime is 955294136519. The next prime is 955294136551. The reversal of 955294136521 is 125631492559.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 874075406400 + 81218730121 = 934920^2 + 284989^2 .

It is a cyclic number.

It is not a de Polignac number, because 955294136521 - 2¹ = 955294136519 is a prime.

Together with 955294136519, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (955294136551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 477647068260 + 477647068261.

It is an arithmetic number, because the mean of its divisors is an integer number (477647068261).

Almost surely, 2^955294136521 is an apocalyptic number.

It is an amenable number.

955294136521 is a deficient number, since it is larger than the sum of its proper divisors (1).

955294136521 is an equidigital number, since it uses as much as digits as its factorization.

955294136521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2916000, while the sum is 52.

The spelling of 955294136521 in words is "nine hundred fifty-five billion, two hundred ninety-four million, one hundred thirty-six thousand, five hundred twenty-one".