61329853 has 8 divisors (see below), whose sum is σ = 69524000. Its totient is φ = 53632368.

The previous prime is 61329823. The next prime is 61329887. The reversal of 61329853 is 35892316.

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 61329853 - 2¹³ = 61321661 is a prime.

It is a super-2 number, since 2×61329853² = 7522701738003218, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61329823) 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 7 ways as a sum of consecutive naturals, for example, 123903 + ... + 124396.

It is an arithmetic number, because the mean of its divisors is an integer number (8690500).

Almost surely, 2^61329853 is an apocalyptic number.

It is an amenable number.

61329853 is a deficient number, since it is larger than the sum of its proper divisors (8194147).

61329853 is a wasteful number, since it uses less digits than its factorization.

61329853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248331.

The product of its digits is 38880, while the sum is 37.

The square root of 61329853 is about 7831.3378805923. The cubic root of 61329853 is about 394.3579871403.

The spelling of 61329853 in words is "sixty-one million, three hundred twenty-nine thousand, eight hundred fifty-three".