52130661 has 64 divisors (see below), whose sum is σ = 85708800. Its totient is φ = 27820800.

The previous prime is 52130657. The next prime is 52130671. The reversal of 52130661 is 16603125.

It is not a de Polignac number, because 52130661 - 2² = 52130657 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52130621) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 854571 + ... + 854631.

It is an arithmetic number, because the mean of its divisors is an integer number (1339200).

Almost surely, 2^52130661 is an apocalyptic number.

It is an amenable number.

52130661 is a deficient number, since it is larger than the sum of its proper divisors (33578139).

52130661 is a wasteful number, since it uses less digits than its factorization.

52130661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 52130661 is about 7220.1565772496. The cubic root of 52130661 is about 373.5634783303.

Adding to 52130661 its reverse (16603125), we get a palindrome (68733786).

The spelling of 52130661 in words is "fifty-two million, one hundred thirty thousand, six hundred sixty-one".