31453252000 has 48 divisors (see below), whose sum is σ = 77280649992. Its totient is φ = 12581299200.

The previous prime is 31453251959. The next prime is 31453252001. The reversal of 31453252000 is 25235413.

It can be written as a sum of positive squares in 4 ways, for example, as 13307006736 + 18146245264 = 115356^2 + 134708^2 .

It is a super-2 number, since 2×31453252000² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (31453252001) 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, 3927657 + ... + 3935656.

Almost surely, 2^31453252000 is an apocalyptic number.

It is an amenable number.

31453252000 is an abundant number, since it is smaller than the sum of its proper divisors (45827397992).

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

31453252000 is an equidigital number, since it uses as much as digits as its factorization.

31453252000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7863338 (or 7863320 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

Adding to 31453252000 its reverse (25235413), we get a palindrome (31478487413).

The spelling of 31453252000 in words is "thirty-one billion, four hundred fifty-three million, two hundred fifty-two thousand".