55150817263 has 2 divisors, whose sum is σ = 55150817264. Its totient is φ = 55150817262.

The previous prime is 55150817261. The next prime is 55150817297. The reversal of 55150817263 is 36271805155.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55150817263 - 2¹ = 55150817261 is a prime.

It is a super-2 number, since 2×55150817263² (a number of 22 digits) contains 22 as substring.

Together with 55150817261, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55150817261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27575408631 + 27575408632.

It is an arithmetic number, because the mean of its divisors is an integer number (27575408632).

Almost surely, 2^55150817263 is an apocalyptic number.

55150817263 is a deficient number, since it is larger than the sum of its proper divisors (1).

55150817263 is an equidigital number, since it uses as much as digits as its factorization.

55150817263 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252000, while the sum is 43.

The spelling of 55150817263 in words is "fifty-five billion, one hundred fifty million, eight hundred seventeen thousand, two hundred sixty-three".