55781483803 has 2 divisors, whose sum is σ = 55781483804. Its totient is φ = 55781483802.

The previous prime is 55781483783. The next prime is 55781483833. The reversal of 55781483803 is 30838418755.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55781483803 is a prime.

It is a super-2 number, since 2×55781483803² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55781483833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27890741901 + 27890741902.

It is an arithmetic number, because the mean of its divisors is an integer number (27890741902).

Almost surely, 2^55781483803 is an apocalyptic number.

55781483803 is a deficient number, since it is larger than the sum of its proper divisors (1).

55781483803 is an equidigital number, since it uses as much as digits as its factorization.

55781483803 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3225600, while the sum is 52.

The spelling of 55781483803 in words is "fifty-five billion, seven hundred eighty-one million, four hundred eighty-three thousand, eight hundred three".