55463032091 has 2 divisors, whose sum is σ = 55463032092. Its totient is φ = 55463032090.

The previous prime is 55463032087. The next prime is 55463032103. The reversal of 55463032091 is 19023036455.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55463032091 - 2² = 55463032087 is a prime.

It is a super-2 number, since 2×55463032091² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55463032061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27731516045 + 27731516046.

It is an arithmetic number, because the mean of its divisors is an integer number (27731516046).

Almost surely, 2^55463032091 is an apocalyptic number.

55463032091 is a deficient number, since it is larger than the sum of its proper divisors (1).

55463032091 is an equidigital number, since it uses as much as digits as its factorization.

55463032091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 97200, while the sum is 38.

The spelling of 55463032091 in words is "fifty-five billion, four hundred sixty-three million, thirty-two thousand, ninety-one".