61028511 has 16 divisors (see below), whose sum is σ = 82974720. Its totient is φ = 39890880.

The previous prime is 61028507. The next prime is 61028549. The reversal of 61028511 is 11582016.

It is not a de Polignac number, because 61028511 - 2² = 61028507 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61028111) 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, 41100 + ... + 42558.

It is an arithmetic number, because the mean of its divisors is an integer number (5185920).

Almost surely, 2^61028511 is an apocalyptic number.

61028511 is a deficient number, since it is larger than the sum of its proper divisors (21946209).

61028511 is a wasteful number, since it uses less digits than its factorization.

61028511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1726.

The product of its (nonzero) digits is 480, while the sum is 24.

The square root of 61028511 is about 7812.0746924233. The cubic root of 61028511 is about 393.7110385233.

The spelling of 61028511 in words is "sixty-one million, twenty-eight thousand, five hundred eleven".