531355 has 8 divisors (see below), whose sum is σ = 695664. Its totient is φ = 386400.

The previous prime is 531353. The next prime is 531359. The reversal of 531355 is 553135.

531355 = 70² + 71² + ... + 124².

It is a happy number.

531355 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 531355 - 2¹ = 531353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (531353) 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, 4776 + ... + 4885.

It is an arithmetic number, because the mean of its divisors is an integer number (86958).

2⁵³¹³⁵⁵ is an apocalyptic number.

531355 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

531355 is a deficient number, since it is larger than the sum of its proper divisors (164309).

531355 is a wasteful number, since it uses less digits than its factorization.

531355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9677.

The product of its digits is 1125, while the sum is 22.

The square root of 531355 is about 728.9410127027. The cubic root of 531355 is about 80.9956305116.

The spelling of 531355 in words is "five hundred thirty-one thousand, three hundred fifty-five".