55390137601 has 2 divisors, whose sum is σ = 55390137602. Its totient is φ = 55390137600.

The previous prime is 55390137587. The next prime is 55390137611. The reversal of 55390137601 is 10673109355.

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., 45584385025 + 9805752576 = 213505^2 + 99024^2 .

It is a cyclic number.

It is not a de Polignac number, because 55390137601 - 2³⁵ = 21030399233 is a prime.

It is not a weakly prime, because it can be changed into another prime (55390137611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27695068800 + 27695068801.

It is an arithmetic number, because the mean of its divisors is an integer number (27695068801).

Almost surely, 2^55390137601 is an apocalyptic number.

It is an amenable number.

55390137601 is a deficient number, since it is larger than the sum of its proper divisors (1).

55390137601 is an equidigital number, since it uses as much as digits as its factorization.

55390137601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 85050, while the sum is 40.

The spelling of 55390137601 in words is "fifty-five billion, three hundred ninety million, one hundred thirty-seven thousand, six hundred one".