55390267902775 has 24 divisors (see below), whose sum is σ = 74234341725824. Its totient is φ = 40755916022400.

The previous prime is 55390267902733. The next prime is 55390267902803. The reversal of 55390267902775 is 57720976209355.

It is not a de Polignac number, because 55390267902775 - 2¹⁹ = 55390267378487 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55390267902775.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 307548231 + ... + 307728280.

Almost surely, 2^{55390267902775} is an apocalyptic number.

55390267902775 is a deficient number, since it is larger than the sum of its proper divisors (18844073823049).

55390267902775 is a wasteful number, since it uses less digits than its factorization.

55390267902775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615276811 (or 615276806 counting only the distinct ones).

The product of its (nonzero) digits is 250047000, while the sum is 67.

The spelling of 55390267902775 in words is "fifty-five trillion, three hundred ninety billion, two hundred sixty-seven million, nine hundred two thousand, seven hundred seventy-five".