55929625105261 has 2 divisors, whose sum is σ = 55929625105262. Its totient is φ = 55929625105260.

The previous prime is 55929625105259. The next prime is 55929625105267. The reversal of 55929625105261 is 16250152692955.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42114324098025 + 13815301007236 = 6489555^2 + 3716894^2 .

It is a cyclic number.

It is not a de Polignac number, because 55929625105261 - 2¹ = 55929625105259 is a prime.

Together with 55929625105259, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 55929625105196 and 55929625105205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55929625105267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27964812552630 + 27964812552631.

It is an arithmetic number, because the mean of its divisors is an integer number (27964812552631).

Almost surely, 2^{55929625105261} is an apocalyptic number.

It is an amenable number.

55929625105261 is a deficient number, since it is larger than the sum of its proper divisors (1).

55929625105261 is an equidigital number, since it uses as much as digits as its factorization.

55929625105261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14580000, while the sum is 58.

The spelling of 55929625105261 in words is "fifty-five trillion, nine hundred twenty-nine billion, six hundred twenty-five million, one hundred five thousand, two hundred sixty-one".