61008851 has 2 divisors, whose sum is σ = 61008852. Its totient is φ = 61008850.

The previous prime is 61008841. The next prime is 61008859. The reversal of 61008851 is 15880016.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61008851 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (61008859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30504425 + 30504426.

It is an arithmetic number, because the mean of its divisors is an integer number (30504426).

Almost surely, 2^61008851 is an apocalyptic number.

61008851 is a deficient number, since it is larger than the sum of its proper divisors (1).

61008851 is an equidigital number, since it uses as much as digits as its factorization.

61008851 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1920, while the sum is 29.

The square root of 61008851 is about 7810.8162825661. The cubic root of 61008851 is about 393.6687566990.

Adding to 61008851 its reverse (15880016), we get a palindrome (76888867).

The spelling of 61008851 in words is "sixty-one million, eight thousand, eight hundred fifty-one".