61005258 has 32 divisors (see below), whose sum is σ = 135861120. Its totient is φ = 20291040.

The previous prime is 61005251. The next prime is 61005283. The reversal of 61005258 is 85250016.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (61005251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32403 + ... + 34233.

It is an arithmetic number, because the mean of its divisors is an integer number (4245660).

Almost surely, 2^61005258 is an apocalyptic number.

61005258 is an abundant number, since it is smaller than the sum of its proper divisors (74855862).

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

61005258 is a wasteful number, since it uses less digits than its factorization.

61005258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2459 (or 2453 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 61005258 is about 7810.5862776107. The cubic root of 61005258 is about 393.6610284236.

The spelling of 61005258 in words is "sixty-one million, five thousand, two hundred fifty-eight".