31535052 has 12 divisors (see below), whose sum is σ = 73581816. Its totient is φ = 10511680.

The previous prime is 31535033. The next prime is 31535057. The reversal of 31535052 is 25053513.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (31535057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1313949 + ... + 1313972.

It is an arithmetic number, because the mean of its divisors is an integer number (6131818).

Almost surely, 2^31535052 is an apocalyptic number.

It is an amenable number.

31535052 is an abundant number, since it is smaller than the sum of its proper divisors (42046764).

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

31535052 is a wasteful number, since it uses less digits than its factorization.

31535052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2627928 (or 2627926 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 24.

The square root of 31535052 is about 5615.6078922945. The cubic root of 31535052 is about 315.9350798644.

Adding to 31535052 its reverse (25053513), we get a palindrome (56588565).

The spelling of 31535052 in words is "thirty-one million, five hundred thirty-five thousand, fifty-two".