31585470052 has 6 divisors (see below), whose sum is σ = 55274572598. Its totient is φ = 15792735024.

The previous prime is 31585470041. The next prime is 31585470053. The reversal of 31585470052 is 25007458513.

It can be written as a sum of positive squares in only one way, i.e., 18794764836 + 12790705216 = 137094^2 + 113096^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31585469987 and 31585470014.

It is not an unprimeable number, because it can be changed into a prime (31585470053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3948183753 + ... + 3948183760.

Almost surely, 2^31585470052 is an apocalyptic number.

It is an amenable number.

31585470052 is a deficient number, since it is larger than the sum of its proper divisors (23689102546).

31585470052 is a wasteful number, since it uses less digits than its factorization.

31585470052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7896367517 (or 7896367515 counting only the distinct ones).

The product of its (nonzero) digits is 168000, while the sum is 40.

The spelling of 31585470052 in words is "thirty-one billion, five hundred eighty-five million, four hundred seventy thousand, fifty-two".