61020635 has 16 divisors (see below), whose sum is σ = 79042656. Its totient is φ = 44955648.

The previous prime is 61020629. The next prime is 61020643. The reversal of 61020635 is 53602016.

It is a cyclic number.

It is not a de Polignac number, because 61020635 - 2¹⁸ = 60758491 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61020635.

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, 36692 + ... + 38318.

It is an arithmetic number, because the mean of its divisors is an integer number (4940166).

Almost surely, 2^61020635 is an apocalyptic number.

61020635 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

61020635 is a deficient number, since it is larger than the sum of its proper divisors (18022021).

61020635 is a wasteful number, since it uses less digits than its factorization.

61020635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2222.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 61020635 is about 7811.5705847160. The cubic root of 61020635 is about 393.6941010762.

The spelling of 61020635 in words is "sixty-one million, twenty thousand, six hundred thirty-five".