85455055157 has 2 divisors, whose sum is σ = 85455055158. Its totient is φ = 85455055156.

The previous prime is 85455055141. The next prime is 85455055171. The reversal of 85455055157 is 75155055458.

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., 76923577201 + 8531477956 = 277351^2 + 92366^2 .

It is a cyclic number.

It is not a de Polignac number, because 85455055157 - 2⁴ = 85455055141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85455055057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42727527578 + 42727527579.

It is an arithmetic number, because the mean of its divisors is an integer number (42727527579).

Almost surely, 2^85455055157 is an apocalyptic number.

It is an amenable number.

85455055157 is a deficient number, since it is larger than the sum of its proper divisors (1).

85455055157 is an equidigital number, since it uses as much as digits as its factorization.

85455055157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3500000, while the sum is 50.

The spelling of 85455055157 in words is "eighty-five billion, four hundred fifty-five million, fifty-five thousand, one hundred fifty-seven".