531355061 has 8 divisors (see below), whose sum is σ = 539822400. Its totient is φ = 522951552.

The previous prime is 531355057. The next prime is 531355093. The reversal of 531355061 is 160553135.

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

It is a cyclic number.

It is not a de Polignac number, because 531355061 - 2² = 531355057 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531355001) 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, 965 + ... + 32613.

It is an arithmetic number, because the mean of its divisors is an integer number (67477800).

Almost surely, 2^531355061 is an apocalyptic number.

It is an amenable number.

531355061 is a deficient number, since it is larger than the sum of its proper divisors (8467339).

531355061 is a wasteful number, since it uses less digits than its factorization.

531355061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31915.

The product of its (nonzero) digits is 6750, while the sum is 29.

The square root of 531355061 is about 23051.1401236468. The cubic root of 531355061 is about 809.9563361110.

The spelling of 531355061 in words is "five hundred thirty-one million, three hundred fifty-five thousand, sixty-one".