61009653 has 8 divisors (see below), whose sum is σ = 81438400. Its totient is φ = 40627008.

The previous prime is 61009601. The next prime is 61009667. The reversal of 61009653 is 35690016.

It is a happy number.

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

It is not a de Polignac number, because 61009653 - 2⁸ = 61009397 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61009653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61009673) 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, 8308 + ... + 13821.

It is an arithmetic number, because the mean of its divisors is an integer number (10179800).

Almost surely, 2^61009653 is an apocalyptic number.

It is an amenable number.

61009653 is a deficient number, since it is larger than the sum of its proper divisors (20428747).

61009653 is a wasteful number, since it uses less digits than its factorization.

61009653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23051.

The product of its (nonzero) digits is 4860, while the sum is 30.

The square root of 61009653 is about 7810.8676214618. The cubic root of 61009653 is about 393.6704816999.

Adding to 61009653 its reverse (35690016), we get a palindrome (96699669).

It can be divided in two parts, 6100 and 9653, that added together give a triangular number (15753 = T₁₇₇).

The spelling of 61009653 in words is "sixty-one million, nine thousand, six hundred fifty-three".