531402052 has 6 divisors (see below), whose sum is σ = 929953598. Its totient is φ = 265701024.

The previous prime is 531402043. The next prime is 531402059. The reversal of 531402052 is 250204135.

It can be written as a sum of positive squares in only one way, i.e., 352538176 + 178863876 = 18776^2 + 13374^2 .

It is not an unprimeable number, because it can be changed into a prime (531402059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66425253 + ... + 66425260.

Almost surely, 2^531402052 is an apocalyptic number.

It is an amenable number.

531402052 is a deficient number, since it is larger than the sum of its proper divisors (398551546).

531402052 is a wasteful number, since it uses less digits than its factorization.

531402052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132850517 (or 132850515 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 531402052 is about 23052.1593782448. The cubic root of 531402052 is about 809.9802118826.

Adding to 531402052 its reverse (250204135), we get a palindrome (781606187).

The spelling of 531402052 in words is "five hundred thirty-one million, four hundred two thousand, fifty-two".