31423452352552 has 32 divisors (see below), whose sum is σ = 63801761030280. Its totient is φ = 14423004046080.

The previous prime is 31423452352549. The next prime is 31423452352553. The reversal of 31423452352552 is 25525325432413.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 20953011882916 + 10470440469636 = 4577446^2 + 3235806^2 .

It is not an unprimeable number, because it can be changed into a prime (31423452352553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 834645763 + ... + 834683410.

Almost surely, 2^{31423452352552} is an apocalyptic number.

It is an amenable number.

31423452352552 is an abundant number, since it is smaller than the sum of its proper divisors (32378308677728).

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

31423452352552 is a wasteful number, since it uses less digits than its factorization.

31423452352552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1669329373 (or 1669329369 counting only the distinct ones).

The product of its digits is 4320000, while the sum is 46.

Adding to 31423452352552 its reverse (25525325432413), we get a palindrome (56948777784965).

The spelling of 31423452352552 in words is "thirty-one trillion, four hundred twenty-three billion, four hundred fifty-two million, three hundred fifty-two thousand, five hundred fifty-two".