61560612 has 18 divisors (see below), whose sum is σ = 155611638. Its totient is φ = 20520192.

The previous prime is 61560599. The next prime is 61560701. The reversal of 61560612 is 21606516.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 53231616 + 8328996 = 7296^2 + 2886^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 854973 + ... + 855044.

It is an arithmetic number, because the mean of its divisors is an integer number (8645091).

Almost surely, 2^61560612 is an apocalyptic number.

It is an amenable number.

61560612 is an abundant number, since it is smaller than the sum of its proper divisors (94051026).

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

61560612 is a wasteful number, since it uses less digits than its factorization.

61560612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1710027 (or 1710022 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 61560612 is about 7846.0570989510. The cubic root of 61560612 is about 394.8519703821.

The spelling of 61560612 in words is "sixty-one million, five hundred sixty thousand, six hundred twelve".