531055402 has 8 divisors (see below), whose sum is σ = 796781700. Its totient is φ = 265461504.

The previous prime is 531055379. The next prime is 531055423. The reversal of 531055402 is 204550135.

It can be written as a sum of positive squares in 2 ways, for example, as 389707081 + 141348321 = 19741^2 + 11889^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22377 + ... + 39532.

Almost surely, 2^531055402 is an apocalyptic number.

531055402 is a deficient number, since it is larger than the sum of its proper divisors (265726298).

531055402 is a wasteful number, since it uses less digits than its factorization.

531055402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66200.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 531055402 is about 23044.6393332593. The cubic root of 531055402 is about 809.8040485205.

The spelling of 531055402 in words is "five hundred thirty-one million, fifty-five thousand, four hundred two".