61653013 has 8 divisors (see below), whose sum is σ = 63299808. Its totient is φ = 60015984.

The previous prime is 61652993. The next prime is 61653023. The reversal of 61653013 is 31035616.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61653013 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 (61653023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11370 + ... + 15892.

It is an arithmetic number, because the mean of its divisors is an integer number (7912476).

Almost surely, 2^61653013 is an apocalyptic number.

It is an amenable number.

61653013 is a deficient number, since it is larger than the sum of its proper divisors (1646795).

61653013 is a wasteful number, since it uses less digits than its factorization.

61653013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4883.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 61653013 is about 7851.9432626580. The cubic root of 61653013 is about 395.0494260642.

Adding to 61653013 its reverse (31035616), we get a palindrome (92688629).

The spelling of 61653013 in words is "sixty-one million, six hundred fifty-three thousand, thirteen".