55103692549 has 2 divisors, whose sum is σ = 55103692550. Its totient is φ = 55103692548.

The previous prime is 55103692513. The next prime is 55103692571. The reversal of 55103692549 is 94529630155.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30325784449 + 24777908100 = 174143^2 + 157410^2 .

It is a cyclic number.

It is not a de Polignac number, because 55103692549 - 2⁹ = 55103692037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55103692949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27551846274 + 27551846275.

It is an arithmetic number, because the mean of its divisors is an integer number (27551846275).

Almost surely, 2^55103692549 is an apocalyptic number.

It is an amenable number.

55103692549 is a deficient number, since it is larger than the sum of its proper divisors (1).

55103692549 is an equidigital number, since it uses as much as digits as its factorization.

55103692549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1458000, while the sum is 49.

The spelling of 55103692549 in words is "fifty-five billion, one hundred three million, six hundred ninety-two thousand, five hundred forty-nine".