1553055345 has 24 divisors (see below), whose sum is σ = 2833646400. Its totient is φ = 784701216.

The previous prime is 1553055337. The next prime is 1553055347. The reversal of 1553055345 is 5435503551.

1553055345 is a `hidden beast` number, since 1 + 5 + 5 + 305 + 5 + 345 = 666.

It is not a de Polignac number, because 1553055345 - 2³ = 1553055337 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1553055347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 907365 + ... + 909074.

It is an arithmetic number, because the mean of its divisors is an integer number (118068600).

Almost surely, 2^1553055345 is an apocalyptic number.

1553055345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1553055345 is a deficient number, since it is larger than the sum of its proper divisors (1280591055).

1553055345 is a wasteful number, since it uses less digits than its factorization.

1553055345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1816469 (or 1816466 counting only the distinct ones).

The product of its (nonzero) digits is 112500, while the sum is 36.

The square root of 1553055345 is about 39408.8231872001. The cubic root of 1553055345 is about 1158.0544440920.

Adding to 1553055345 its reverse (5435503551), we get a palindrome (6988558896).

The spelling of 1553055345 in words is "one billion, five hundred fifty-three million, fifty-five thousand, three hundred forty-five".