61062805 has 4 divisors (see below), whose sum is σ = 73275372. Its totient is φ = 48850240.

The previous prime is 61062797. The next prime is 61062809. The reversal of 61062805 is 50826016.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32182929 + 28879876 = 5673^2 + 5374^2 .

It is not a de Polignac number, because 61062805 - 2³ = 61062797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61062809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6106276 + ... + 6106285.

It is an arithmetic number, because the mean of its divisors is an integer number (18318843).

Almost surely, 2^61062805 is an apocalyptic number.

It is an amenable number.

61062805 is a deficient number, since it is larger than the sum of its proper divisors (12212567).

61062805 is a wasteful number, since it uses less digits than its factorization.

61062805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12212566.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 61062805 is about 7814.2693196485. The cubic root of 61062805 is about 393.7847712638.

It can be divided in two parts, 6106 and 2805, that added together give a triangular number (8911 = T₁₃₃).

The spelling of 61062805 in words is "sixty-one million, sixty-two thousand, eight hundred five".