61888361 has 2 divisors, whose sum is σ = 61888362. Its totient is φ = 61888360.

The previous prime is 61888327. The next prime is 61888367. The reversal of 61888361 is 16388816.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54834025 + 7054336 = 7405^2 + 2656^2 .

It is a cyclic number.

It is not a de Polignac number, because 61888361 - 2¹⁴ = 61871977 is a prime.

It is not a weakly prime, because it can be changed into another prime (61888367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30944180 + 30944181.

It is an arithmetic number, because the mean of its divisors is an integer number (30944181).

Almost surely, 2^61888361 is an apocalyptic number.

It is an amenable number.

61888361 is a deficient number, since it is larger than the sum of its proper divisors (1).

61888361 is an equidigital number, since it uses as much as digits as its factorization.

61888361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 55296, while the sum is 41.

The square root of 61888361 is about 7866.9155963440. The cubic root of 61888361 is about 395.5514617569.

The spelling of 61888361 in words is "sixty-one million, eight hundred eighty-eight thousand, three hundred sixty-one".