61255628 has 24 divisors (see below), whose sum is σ = 126465024. Its totient is φ = 25405200.

The previous prime is 61255613. The next prime is 61255643. The reversal of 61255628 is 82655216.

It is an interprime number because it is at equal distance from previous prime (61255613) and next prime (61255643).

It is a Smith number, since the sum of its digits (35) 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 7 ways as a sum of consecutive naturals, for example, 34418 + ... + 36153.

It is an arithmetic number, because the mean of its divisors is an integer number (5269376).

Almost surely, 2^61255628 is an apocalyptic number.

It is an amenable number.

61255628 is an abundant number, since it is smaller than the sum of its proper divisors (65209396).

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

61255628 is a wasteful number, since it uses less digits than its factorization.

61255628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70613 (or 70611 counting only the distinct ones).

The product of its digits is 28800, while the sum is 35.

The square root of 61255628 is about 7826.5974727208. The cubic root of 61255628 is about 394.1988311628.

The spelling of 61255628 in words is "sixty-one million, two hundred fifty-five thousand, six hundred twenty-eight".