61888061 has 2 divisors, whose sum is σ = 61888062. Its totient is φ = 61888060.

The previous prime is 61888031. The next prime is 61888091. The reversal of 61888061 is 16088816.

It is a balanced prime because it is at equal distance from previous prime (61888031) and next prime (61888091).

It can be written as a sum of positive squares in only one way, i.e., 56625625 + 5262436 = 7525^2 + 2294^2 .

It is a cyclic number.

It is not a de Polignac number, because 61888061 - 2¹⁰ = 61887037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61888031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30944030 + 30944031.

It is an arithmetic number, because the mean of its divisors is an integer number (30944031).

Almost surely, 2^61888061 is an apocalyptic number.

It is an amenable number.

61888061 is a deficient number, since it is larger than the sum of its proper divisors (1).

61888061 is an equidigital number, since it uses as much as digits as its factorization.

61888061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18432, while the sum is 38.

The square root of 61888061 is about 7866.8965291276. The cubic root of 61888061 is about 395.5508226188.

The spelling of 61888061 in words is "sixty-one million, eight hundred eighty-eight thousand, sixty-one".