61560228 has 24 divisors (see below), whose sum is σ = 151201120. Its totient is φ = 19440000.

The previous prime is 61560217. The next prime is 61560263. The reversal of 61560228 is 82206516.

It is a junction number, because it is equal to n+sod(n) for n = 61560195 and 61560204.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134773 + ... + 135228.

Almost surely, 2^61560228 is an apocalyptic number.

It is an amenable number.

61560228 is an abundant number, since it is smaller than the sum of its proper divisors (89640892).

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

61560228 is a wasteful number, since it uses less digits than its factorization.

61560228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270027 (or 270025 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 61560228 is about 7846.0326280229. The cubic root of 61560228 is about 394.8511493838.

The spelling of 61560228 in words is "sixty-one million, five hundred sixty thousand, two hundred twenty-eight".