5231545402 has 4 divisors (see below), whose sum is σ = 7847318106. Its totient is φ = 2615772700.

The previous prime is 5231545387. The next prime is 5231545433. The reversal of 5231545402 is 2045451325.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 5156532481 + 75012921 = 71809^2 + 8661^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1307886349 + ... + 1307886352.

Almost surely, 2^5231545402 is an apocalyptic number.

5231545402 is a deficient number, since it is larger than the sum of its proper divisors (2615772704).

5231545402 is a wasteful number, since it uses less digits than its factorization.

5231545402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2615772703.

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 5231545402 is about 72329.4227959825. The cubic root of 5231545402 is about 1735.9744657506.

Adding to 5231545402 its reverse (2045451325), we get a palindrome (7276996727).

The spelling of 5231545402 in words is "five billion, two hundred thirty-one million, five hundred forty-five thousand, four hundred two".