1553855483 has 2 divisors, whose sum is σ = 1553855484. Its totient is φ = 1553855482.

The previous prime is 1553855461. The next prime is 1553855543. The reversal of 1553855483 is 3845583551.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1553855483 - 2¹⁸ = 1553593339 is a prime.

It is not a weakly prime, because it can be changed into another prime (1553855983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 776927741 + 776927742.

It is an arithmetic number, because the mean of its divisors is an integer number (776927742).

Almost surely, 2^1553855483 is an apocalyptic number.

1553855483 is a deficient number, since it is larger than the sum of its proper divisors (1).

1553855483 is an equidigital number, since it uses as much as digits as its factorization.

1553855483 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1440000, while the sum is 47.

The square root of 1553855483 is about 39418.9736421434. The cubic root of 1553855483 is about 1158.2532874636.

The spelling of 1553855483 in words is "one billion, five hundred fifty-three million, eight hundred fifty-five thousand, four hundred eighty-three".