31055016 has 32 divisors (see below), whose sum is σ = 77826240. Its totient is φ = 10326528.

The previous prime is 31055009. The next prime is 31055021. The reversal of 31055016 is 61055013.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 31054983 and 31055001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10360 + ... + 13016.

It is an arithmetic number, because the mean of its divisors is an integer number (2432070).

Almost surely, 2^31055016 is an apocalyptic number.

It is an amenable number.

31055016 is an abundant number, since it is smaller than the sum of its proper divisors (46771224).

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

31055016 is a wasteful number, since it uses less digits than its factorization.

31055016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3153 (or 3149 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 31055016 is about 5572.7027553962. The cubic root of 31055016 is about 314.3237900347.

The spelling of 31055016 in words is "thirty-one million, fifty-five thousand, sixteen".