31514400052 has 6 divisors (see below), whose sum is σ = 55150200098. Its totient is φ = 15757200024.

The previous prime is 31514400041. The next prime is 31514400053. The reversal of 31514400052 is 25000441513.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 19925016336 + 11589383716 = 141156^2 + 107654^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31514400053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3939300003 + ... + 3939300010.

Almost surely, 2^31514400052 is an apocalyptic number.

It is an amenable number.

31514400052 is a deficient number, since it is larger than the sum of its proper divisors (23635800046).

31514400052 is a wasteful number, since it uses less digits than its factorization.

31514400052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7878600017 (or 7878600015 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 31514400052 its reverse (25000441513), we get a palindrome (56514841565).

The spelling of 31514400052 in words is "thirty-one billion, five hundred fourteen million, four hundred thousand, fifty-two".