671560252 has 48 divisors (see below), whose sum is σ = 1320173568. Its totient is φ = 296291520.

The previous prime is 671560217. The next prime is 671560259. The reversal of 671560252 is 252065176.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671560259) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 261358 + ... + 263914.

It is an arithmetic number, because the mean of its divisors is an integer number (27503616).

Almost surely, 2^671560252 is an apocalyptic number.

It is an amenable number.

671560252 is a deficient number, since it is larger than the sum of its proper divisors (648613316).

671560252 is a wasteful number, since it uses less digits than its factorization.

671560252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2746 (or 2744 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 671560252 is about 25914.4795818863. The cubic root of 671560252 is about 875.7127262884.

The spelling of 671560252 in words is "six hundred seventy-one million, five hundred sixty thousand, two hundred fifty-two".