61610651 has 8 divisors (see below), whose sum is σ = 62914320. Its totient is φ = 60320512.

The previous prime is 61610641. The next prime is 61610657. The reversal of 61610651 is 15601616.

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-61610651 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 61610651.

It is not an unprimeable number, because it can be changed into a prime (61610657) 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, 6095 + ... + 12663.

It is an arithmetic number, because the mean of its divisors is an integer number (7864290).

Almost surely, 2^61610651 is an apocalyptic number.

61610651 is a deficient number, since it is larger than the sum of its proper divisors (1303669).

61610651 is a wasteful number, since it uses less digits than its factorization.

61610651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6765.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 61610651 is about 7849.2452503410. The cubic root of 61610651 is about 394.9589253877.

The spelling of 61610651 in words is "sixty-one million, six hundred ten thousand, six hundred fifty-one".