5661530 has 32 divisors (see below), whose sum is σ = 12026880. Its totient is φ = 1877760.

The previous prime is 5661529. The next prime is 5661547. The reversal of 5661530 is 351665.

It is a self number, because there is not a number n which added to its sum of digits gives 5661530.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 866 + ... + 3474.

It is an arithmetic number, because the mean of its divisors is an integer number (375840).

Almost surely, 2^5661530 is an apocalyptic number.

5661530 is an abundant number, since it is smaller than the sum of its proper divisors (6365350).

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

5661530 is a wasteful number, since it uses less digits than its factorization.

5661530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2654.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 5661530 is about 2379.3969824306. The cubic root of 5661530 is about 178.2288224124.

The spelling of 5661530 in words is "five million, six hundred sixty-one thousand, five hundred thirty".