531988955 has 8 divisors (see below), whose sum is σ = 638925504. Its totient is φ = 425232000.

The previous prime is 531988909. The next prime is 531988967. The reversal of 531988955 is 559889135.

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

It is not a de Polignac number, because 531988955 - 2²² = 527794651 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 531988897 and 531988906.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38291 + ... + 50300.

It is an arithmetic number, because the mean of its divisors is an integer number (79865688).

Almost surely, 2^531988955 is an apocalyptic number.

531988955 is a deficient number, since it is larger than the sum of its proper divisors (106936549).

531988955 is a wasteful number, since it uses less digits than its factorization.

531988955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89797.

The product of its digits is 1944000, while the sum is 53.

The square root of 531988955 is about 23064.8857573585. The cubic root of 531988955 is about 810.2782943557.

The spelling of 531988955 in words is "five hundred thirty-one million, nine hundred eighty-eight thousand, nine hundred fifty-five".