61712260 has 12 divisors (see below), whose sum is σ = 129595788. Its totient is φ = 24684896.

The previous prime is 61712249. The next prime is 61712281. The reversal of 61712260 is 6221716.

It can be written as a sum of positive squares in 2 ways, for example, as 18783556 + 42928704 = 4334^2 + 6552^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1542787 + ... + 1542826.

It is an arithmetic number, because the mean of its divisors is an integer number (10799649).

Almost surely, 2^61712260 is an apocalyptic number.

It is an amenable number.

61712260 is an abundant number, since it is smaller than the sum of its proper divisors (67883528).

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

61712260 is a wasteful number, since it uses less digits than its factorization.

61712260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3085622 (or 3085620 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 61712260 is about 7855.7151170342. The cubic root of 61712260 is about 395.1759297491.

Adding to 61712260 its reverse (6221716), we get a palindrome (67933976).

The spelling of 61712260 in words is "sixty-one million, seven hundred twelve thousand, two hundred sixty".