1553672913 has 16 divisors (see below), whose sum is σ = 2232134016. Its totient is φ = 955584000.

The previous prime is 1553672903. The next prime is 1553672971. The reversal of 1553672913 is 3192763551.

It is not a de Polignac number, because 1553672913 - 2⁵ = 1553672881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1553672903) 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, 68788 + ... + 88538.

It is an arithmetic number, because the mean of its divisors is an integer number (139508376).

Almost surely, 2^1553672913 is an apocalyptic number.

1553672913 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1553672913 is a deficient number, since it is larger than the sum of its proper divisors (678461103).

1553672913 is a wasteful number, since it uses less digits than its factorization.

1553672913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21784.

The product of its digits is 170100, while the sum is 42.

The square root of 1553672913 is about 39416.6578111336. The cubic root of 1553672913 is about 1158.2079227589.

The spelling of 1553672913 in words is "one billion, five hundred fifty-three million, six hundred seventy-two thousand, nine hundred thirteen".