553665145 has 24 divisors (see below), whose sum is σ = 742714560. Its totient is φ = 395815200.

The previous prime is 553665143. The next prime is 553665199. The reversal of 553665145 is 541566355.

It is not a de Polignac number, because 553665145 - 2¹ = 553665143 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 553665098 and 553665107.

It is not an unprimeable number, because it can be changed into a prime (553665143) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27940 + ... + 43450.

It is an arithmetic number, because the mean of its divisors is an integer number (30946440).

Almost surely, 2^553665145 is an apocalyptic number.

553665145 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

553665145 is a deficient number, since it is larger than the sum of its proper divisors (189049415).

553665145 is a wasteful number, since it uses less digits than its factorization.

553665145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15597 (or 15586 counting only the distinct ones).

The product of its digits is 270000, while the sum is 40.

The square root of 553665145 is about 23530.0902038220. The cubic root of 553665145 is about 821.1372011661.

The spelling of 553665145 in words is "five hundred fifty-three million, six hundred sixty-five thousand, one hundred forty-five".