55837691401 has 2 divisors, whose sum is σ = 55837691402. Its totient is φ = 55837691400.

The previous prime is 55837691369. The next prime is 55837691461. The reversal of 55837691401 is 10419673855.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46937655801 + 8900035600 = 216651^2 + 94340^2 .

It is a cyclic number.

It is not a de Polignac number, because 55837691401 - 2⁵ = 55837691369 is a prime.

It is not a weakly prime, because it can be changed into another prime (55837691461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27918845700 + 27918845701.

It is an arithmetic number, because the mean of its divisors is an integer number (27918845701).

Almost surely, 2^55837691401 is an apocalyptic number.

It is an amenable number.

55837691401 is a deficient number, since it is larger than the sum of its proper divisors (1).

55837691401 is an equidigital number, since it uses as much as digits as its factorization.

55837691401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 907200, while the sum is 49.

The spelling of 55837691401 in words is "fifty-five billion, eight hundred thirty-seven million, six hundred ninety-one thousand, four hundred one".