61652261 has 8 divisors (see below), whose sum is σ = 68261664. Its totient is φ = 55210320.

The previous prime is 61652257. The next prime is 61652263. The reversal of 61652261 is 16225616.

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

It is not a de Polignac number, because 61652261 - 2² = 61652257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61652263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41090 + ... + 42563.

It is an arithmetic number, because the mean of its divisors is an integer number (8532708).

Almost surely, 2^61652261 is an apocalyptic number.

It is an amenable number.

61652261 is a deficient number, since it is larger than the sum of its proper divisors (6609403).

61652261 is a wasteful number, since it uses less digits than its factorization.

61652261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83731.

The product of its digits is 4320, while the sum is 29.

The square root of 61652261 is about 7851.8953762770. The cubic root of 61652261 is about 395.0478198795.

Adding to 61652261 its reverse (16225616), we get a palindrome (77877877).

The spelling of 61652261 in words is "sixty-one million, six hundred fifty-two thousand, two hundred sixty-one".