55991096535 has 48 divisors (see below), whose sum is σ = 98546692608. Its totient is φ = 27126137280.

The previous prime is 55991096533. The next prime is 55991096549. The reversal of 55991096535 is 53569019955.

It is not a de Polignac number, because 55991096535 - 2¹ = 55991096533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55991096531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2469822 + ... + 2492388.

It is an arithmetic number, because the mean of its divisors is an integer number (2053056096).

Almost surely, 2^55991096535 is an apocalyptic number.

55991096535 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55991096535 is a deficient number, since it is larger than the sum of its proper divisors (42555596073).

55991096535 is a wasteful number, since it uses less digits than its factorization.

55991096535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23964 (or 23953 counting only the distinct ones).

The product of its (nonzero) digits is 8201250, while the sum is 57.

The spelling of 55991096535 in words is "fifty-five billion, nine hundred ninety-one million, ninety-six thousand, five hundred thirty-five".