61567228 has 48 divisors (see below), whose sum is σ = 117089280. Its totient is φ = 28252224.

The previous prime is 61567213. The next prime is 61567237. The reversal of 61567228 is 82276516.

It is a happy number.

It is a congruent number.

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, 312426 + ... + 312622.

It is an arithmetic number, because the mean of its divisors is an integer number (2439360).

Almost surely, 2^61567228 is an apocalyptic number.

It is an amenable number.

61567228 is a deficient number, since it is larger than the sum of its proper divisors (55522052).

61567228 is a wasteful number, since it uses less digits than its factorization.

61567228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346 (or 344 counting only the distinct ones).

The product of its digits is 40320, while the sum is 37.

The square root of 61567228 is about 7846.4787006657. The cubic root of 61567228 is about 394.8661149624.

The spelling of 61567228 in words is "sixty-one million, five hundred sixty-seven thousand, two hundred twenty-eight".