1553005051 has 6 divisors (see below), whose sum is σ = 1681656540. Its totient is φ = 1433542968.

The previous prime is 1553005049. The next prime is 1553005073. The reversal of 1553005051 is 1505003551.

It is not a de Polignac number, because 1553005051 - 2¹ = 1553005049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1553002051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4594521 + ... + 4594858.

It is an arithmetic number, because the mean of its divisors is an integer number (280276090).

Almost surely, 2^1553005051 is an apocalyptic number.

1553005051 is a deficient number, since it is larger than the sum of its proper divisors (128651489).

1553005051 is an equidigital number, since it uses as much as digits as its factorization.

1553005051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9189405 (or 9189392 counting only the distinct ones).

The product of its (nonzero) digits is 1875, while the sum is 25.

The square root of 1553005051 is about 39408.1850761996. The cubic root of 1553005051 is about 1158.0419431813.

The spelling of 1553005051 in words is "one billion, five hundred fifty-three million, five thousand, fifty-one".