61830275 has 72 divisors (see below), whose sum is σ = 95243904. Its totient is φ = 39398400.

The previous prime is 61830253. The next prime is 61830299. The reversal of 61830275 is 57203816.

It is a happy number.

It is not a de Polignac number, because 61830275 - 2⁸ = 61830019 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1994510 + ... + 1994540.

It is an arithmetic number, because the mean of its divisors is an integer number (1322832).

Almost surely, 2^61830275 is an apocalyptic number.

61830275 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

61830275 is a deficient number, since it is larger than the sum of its proper divisors (33413629).

61830275 is a wasteful number, since it uses less digits than its factorization.

61830275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109 (or 85 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 61830275 is about 7863.2229397366. Note that the first 3 decimals coincide. The cubic root of 61830275 is about 395.4276733002.

The spelling of 61830275 in words is "sixty-one million, eight hundred thirty thousand, two hundred seventy-five".