31355052 has 12 divisors (see below), whose sum is σ = 73161816. Its totient is φ = 10451680.

The previous prime is 31355047. The next prime is 31355057. The reversal of 31355052 is 25055313.

It is an interprime number because it is at equal distance from previous prime (31355047) and next prime (31355057).

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 (31355057) 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, 1306449 + ... + 1306472.

It is an arithmetic number, because the mean of its divisors is an integer number (6096818).

Almost surely, 2^31355052 is an apocalyptic number.

It is an amenable number.

31355052 is an abundant number, since it is smaller than the sum of its proper divisors (41806764).

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

31355052 is a wasteful number, since it uses less digits than its factorization.

31355052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2612928 (or 2612926 counting only the distinct ones).

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

The square root of 31355052 is about 5599.5581968580. The cubic root of 31355052 is about 315.3328203110.

The spelling of 31355052 in words is "thirty-one million, three hundred fifty-five thousand, fifty-two".