55031031547 has 2 divisors, whose sum is σ = 55031031548. Its totient is φ = 55031031546.

The previous prime is 55031031499. The next prime is 55031031557. The reversal of 55031031547 is 74513013055.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55031031547 - 2¹¹ = 55031029499 is a prime.

It is not a weakly prime, because it can be changed into another prime (55031031557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27515515773 + 27515515774.

It is an arithmetic number, because the mean of its divisors is an integer number (27515515774).

Almost surely, 2^55031031547 is an apocalyptic number.

55031031547 is a deficient number, since it is larger than the sum of its proper divisors (1).

55031031547 is an equidigital number, since it uses as much as digits as its factorization.

55031031547 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31500, while the sum is 34.

The spelling of 55031031547 in words is "fifty-five billion, thirty-one million, thirty-one thousand, five hundred forty-seven".