31540225050 has 36 divisors (see below), whose sum is σ = 84738072510. Its totient is φ = 8410726560.

The previous prime is 31540225049. The next prime is 31540225061. The reversal of 31540225050 is 5052204513.

It is a happy number.

31540225050 is a `hidden beast` number, since 3 + 1 + 5 + 402 + 250 + 5 + 0 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 13259292201 + 18280932849 = 115149^2 + 135207^2 .

It is a Curzon number.

It is an unprimeable number.

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 in 17 ways as a sum of consecutive naturals, for example, 35044245 + ... + 35045144.

Almost surely, 2^31540225050 is an apocalyptic number.

31540225050 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31540225050 is an abundant number, since it is smaller than the sum of its proper divisors (53197847460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31540225050 is a wasteful number, since it uses less digits than its factorization.

31540225050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70089407 (or 70089399 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

Adding to 31540225050 its reverse (5052204513), we get a palindrome (36592429563).

The spelling of 31540225050 in words is "thirty-one billion, five hundred forty million, two hundred twenty-five thousand, fifty".