55025430212257 has 2 divisors, whose sum is σ = 55025430212258. Its totient is φ = 55025430212256.

The previous prime is 55025430212239. The next prime is 55025430212281. The reversal of 55025430212257 is 75221203452055.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54756980841616 + 268449370641 = 7399796^2 + 518121^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55025430212257 is a prime.

It is not a weakly prime, because it can be changed into another prime (55025430212057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27512715106128 + 27512715106129.

It is an arithmetic number, because the mean of its divisors is an integer number (27512715106129).

Almost surely, 2^{55025430212257} is an apocalyptic number.

It is an amenable number.

55025430212257 is a deficient number, since it is larger than the sum of its proper divisors (1).

55025430212257 is an equidigital number, since it uses as much as digits as its factorization.

55025430212257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 840000, while the sum is 43.

The spelling of 55025430212257 in words is "fifty-five trillion, twenty-five billion, four hundred thirty million, two hundred twelve thousand, two hundred fifty-seven".