61005270 has 32 divisors (see below), whose sum is σ = 151463520. Its totient is φ = 15706880.

The previous prime is 61005251. The next prime is 61005283. The reversal of 61005270 is 7250016.

It is a Curzon 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, 34191 + ... + 35930.

It is an arithmetic number, because the mean of its divisors is an integer number (4733235).

Almost surely, 2^61005270 is an apocalyptic number.

61005270 is an abundant number, since it is smaller than the sum of its proper divisors (90458250).

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

61005270 is a wasteful number, since it uses less digits than its factorization.

61005270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70160.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 61005270 is about 7810.5870457988. The cubic root of 61005270 is about 393.6610542352.

Adding to 61005270 its reverse (7250016), we get a palindrome (68255286).

The spelling of 61005270 in words is "sixty-one million, five thousand, two hundred seventy".