61544983 has 2 divisors, whose sum is σ = 61544984. Its totient is φ = 61544982.

The previous prime is 61544969. The next prime is 61544993. The reversal of 61544983 is 38944516.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61544983 - 2¹³ = 61536791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61544963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30772491 + 30772492.

It is an arithmetic number, because the mean of its divisors is an integer number (30772492).

Almost surely, 2^61544983 is an apocalyptic number.

61544983 is a deficient number, since it is larger than the sum of its proper divisors (1).

61544983 is an equidigital number, since it uses as much as digits as its factorization.

61544983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 103680, while the sum is 40.

The square root of 61544983 is about 7845.0610577611. The cubic root of 61544983 is about 394.8185525653.

The spelling of 61544983 in words is "sixty-one million, five hundred forty-four thousand, nine hundred eighty-three".