553888391 has 8 divisors (see below), whose sum is σ = 636675744. Its totient is φ = 472016160.

The previous prime is 553888381. The next prime is 553888403. The reversal of 553888391 is 193888355.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 553888391 - 2⁶ = 553888327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (553888301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227480 + ... + 229901.

It is an arithmetic number, because the mean of its divisors is an integer number (79584468).

Almost surely, 2^553888391 is an apocalyptic number.

553888391 is a deficient number, since it is larger than the sum of its proper divisors (82787353).

553888391 is a wasteful number, since it uses less digits than its factorization.

553888391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457561.

The product of its digits is 1036800, while the sum is 50.

The square root of 553888391 is about 23534.8335664393. The cubic root of 553888391 is about 821.2475512361.

The spelling of 553888391 in words is "five hundred fifty-three million, eight hundred eighty-eight thousand, three hundred ninety-one".