61622513 has 8 divisors (see below), whose sum is σ = 64561920. Its totient is φ = 58742640.

The previous prime is 61622507. The next prime is 61622527. The reversal of 61622513 is 31522616.

61622513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61622513 - 2¹⁰ = 61621489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61622503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12758 + ... + 16911.

It is an arithmetic number, because the mean of its divisors is an integer number (8070240).

Almost surely, 2^61622513 is an apocalyptic number.

It is an amenable number.

61622513 is a deficient number, since it is larger than the sum of its proper divisors (2939407).

61622513 is a wasteful number, since it uses less digits than its factorization.

61622513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29767.

The product of its digits is 2160, while the sum is 26.

The square root of 61622513 is about 7850.0008280254. Note that the first 3 decimals coincide. The cubic root of 61622513 is about 394.9842711250.

It can be divided in two parts, 6 and 1622513, that multiplied together give a triangular number (9735078 = T₄₄₁₂).

The spelling of 61622513 in words is "sixty-one million, six hundred twenty-two thousand, five hundred thirteen".