1553045313 has 16 divisors (see below), whose sum is σ = 2183352320. Its totient is φ = 979232976.

The previous prime is 1553045309. The next prime is 1553045317. The reversal of 1553045313 is 3135403551.

It is an interprime number because it is at equal distance from previous prime (1553045309) and next prime (1553045317).

It is not a de Polignac number, because 1553045313 - 2² = 1553045309 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1553045317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12156 + ... + 57042.

It is an arithmetic number, because the mean of its divisors is an integer number (136459520).

Almost surely, 2^1553045313 is an apocalyptic number.

It is an amenable number.

1553045313 is a deficient number, since it is larger than the sum of its proper divisors (630307007).

1553045313 is a wasteful number, since it uses less digits than its factorization.

1553045313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45516.

The product of its (nonzero) digits is 13500, while the sum is 30.

The square root of 1553045313 is about 39408.6959058531. The cubic root of 1553045313 is about 1158.0519505928.

Adding to 1553045313 its reverse (3135403551), we get a palindrome (4688448864).

The spelling of 1553045313 in words is "one billion, five hundred fifty-three million, forty-five thousand, three hundred thirteen".