61339553 has 16 divisors (see below), whose sum is σ = 73301760. Its totient is φ = 50668800.

The previous prime is 61339529. The next prime is 61339583. The reversal of 61339553 is 35593316.

It is not a de Polignac number, because 61339553 - 2¹⁴ = 61323169 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (61339583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 233 + ... + 11078.

It is an arithmetic number, because the mean of its divisors is an integer number (4581360).

Almost surely, 2^61339553 is an apocalyptic number.

It is an amenable number.

61339553 is a deficient number, since it is larger than the sum of its proper divisors (11962207).

61339553 is a wasteful number, since it uses less digits than its factorization.

61339553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11368.

The product of its digits is 36450, while the sum is 35.

The square root of 61339553 is about 7831.9571628042. The cubic root of 61339553 is about 394.3787767484.

The spelling of 61339553 in words is "sixty-one million, three hundred thirty-nine thousand, five hundred fifty-three".