55552923947 has 2 divisors, whose sum is σ = 55552923948. Its totient is φ = 55552923946.

The previous prime is 55552923887. The next prime is 55552923961. The reversal of 55552923947 is 74932925555.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55552923947 - 2²⁰ = 55551875371 is a prime.

It is a super-2 number, since 2×55552923947² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55552923892 and 55552923901.

It is not a weakly prime, because it can be changed into another prime (55552923047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27776461973 + 27776461974.

It is an arithmetic number, because the mean of its divisors is an integer number (27776461974).

Almost surely, 2^55552923947 is an apocalyptic number.

55552923947 is a deficient number, since it is larger than the sum of its proper divisors (1).

55552923947 is an equidigital number, since it uses as much as digits as its factorization.

55552923947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17010000, while the sum is 56.

The spelling of 55552923947 in words is "fifty-five billion, five hundred fifty-two million, nine hundred twenty-three thousand, nine hundred forty-seven".