553928691 has 4 divisors (see below), whose sum is σ = 738571592. Its totient is φ = 369285792.

The previous prime is 553928657. The next prime is 553928693. The reversal of 553928691 is 196829355.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 553928691 - 2²² = 549734387 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 553928691.

It is not an unprimeable number, because it can be changed into a prime (553928693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92321446 + ... + 92321451.

It is an arithmetic number, because the mean of its divisors is an integer number (184642898).

Almost surely, 2^553928691 is an apocalyptic number.

553928691 is a deficient number, since it is larger than the sum of its proper divisors (184642901).

553928691 is a wasteful number, since it uses less digits than its factorization.

553928691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184642900.

The product of its digits is 583200, while the sum is 48.

The square root of 553928691 is about 23535.6897285803. The cubic root of 553928691 is about 821.2674682893.

The spelling of 553928691 in words is "five hundred fifty-three million, nine hundred twenty-eight thousand, six hundred ninety-one".