6532400631 has 16 divisors (see below), whose sum is σ = 8994521088. Its totient is φ = 4212722400.

The previous prime is 6532400627. The next prime is 6532400647. The reversal of 6532400631 is 1360042356.

It is not a de Polignac number, because 6532400631 - 2² = 6532400627 is a prime.

It is a super-2 number, since 2×6532400631² = 85344516007778396322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6532400681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 236821 + ... + 262961.

It is an arithmetic number, because the mean of its divisors is an integer number (562157568).

Almost surely, 2^6532400631 is an apocalyptic number.

6532400631 is a deficient number, since it is larger than the sum of its proper divisors (2462120457).

6532400631 is a wasteful number, since it uses less digits than its factorization.

6532400631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28862.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 6532400631 is about 80823.2678812234. The cubic root of 6532400631 is about 1869.3513560513.

Adding to 6532400631 its reverse (1360042356), we get a palindrome (7892442987).

The spelling of 6532400631 in words is "six billion, five hundred thirty-two million, four hundred thousand, six hundred thirty-one".