553561393 has 16 divisors (see below), whose sum is σ = 691966080. Its totient is φ = 430214400.

The previous prime is 553561391. The next prime is 553561417. The reversal of 553561393 is 393165355.

It is not a de Polignac number, because 553561393 - 2¹ = 553561391 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (553561391) 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, 20713 + ... + 39193.

It is an arithmetic number, because the mean of its divisors is an integer number (43247880).

Almost surely, 2^553561393 is an apocalyptic number.

It is an amenable number.

553561393 is a deficient number, since it is larger than the sum of its proper divisors (138404687).

553561393 is a wasteful number, since it uses less digits than its factorization.

553561393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18888.

The product of its digits is 182250, while the sum is 40.

The square root of 553561393 is about 23527.8854340971. The cubic root of 553561393 is about 821.0859066548.

The spelling of 553561393 in words is "five hundred fifty-three million, five hundred sixty-one thousand, three hundred ninety-three".