1553311513 has 16 divisors (see below), whose sum is σ = 1728627712. Its totient is φ = 1386072000.

The previous prime is 1553311493. The next prime is 1553311531. The reversal of 1553311513 is 3151133551.

It is not a de Polignac number, because 1553311513 - 2²⁵ = 1519757081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1553311213) 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, 555148 + ... + 557938.

It is an arithmetic number, because the mean of its divisors is an integer number (108039232).

Almost surely, 2^1553311513 is an apocalyptic number.

1553311513 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1553311513 is a deficient number, since it is larger than the sum of its proper divisors (175316199).

1553311513 is a wasteful number, since it uses less digits than its factorization.

1553311513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4216.

The product of its digits is 3375, while the sum is 28.

The square root of 1553311513 is about 39412.0731883011. The cubic root of 1553311513 is about 1158.1181121776.

The spelling of 1553311513 in words is "one billion, five hundred fifty-three million, three hundred eleven thousand, five hundred thirteen".