61083551 has 2 divisors, whose sum is σ = 61083552. Its totient is φ = 61083550.

The previous prime is 61083527. The next prime is 61083587. The reversal of 61083551 is 15538016.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61083551 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61083751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30541775 + 30541776.

It is an arithmetic number, because the mean of its divisors is an integer number (30541776).

Almost surely, 2^61083551 is an apocalyptic number.

61083551 is a deficient number, since it is larger than the sum of its proper divisors (1).

61083551 is an equidigital number, since it uses as much as digits as its factorization.

61083551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 61083551 is about 7815.5966502884. The cubic root of 61083551 is about 393.8293621504.

The spelling of 61083551 in words is "sixty-one million, eighty-three thousand, five hundred fifty-one".