55526161601 has 2 divisors, whose sum is σ = 55526161602. Its totient is φ = 55526161600.

The previous prime is 55526161591. The next prime is 55526161619. The reversal of 55526161601 is 10616162555.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54186528400 + 1339633201 = 232780^2 + 36601^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55526161601 is a prime.

It is not a weakly prime, because it can be changed into another prime (55526161661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27763080800 + 27763080801.

It is an arithmetic number, because the mean of its divisors is an integer number (27763080801).

Almost surely, 2^55526161601 is an apocalyptic number.

It is an amenable number.

55526161601 is a deficient number, since it is larger than the sum of its proper divisors (1).

55526161601 is an equidigital number, since it uses as much as digits as its factorization.

55526161601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54000, while the sum is 38.

The spelling of 55526161601 in words is "fifty-five billion, five hundred twenty-six million, one hundred sixty-one thousand, six hundred one".