61650461 has 2 divisors, whose sum is σ = 61650462. Its totient is φ = 61650460.

The previous prime is 61650439. The next prime is 61650467. The reversal of 61650461 is 16405616.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41847961 + 19802500 = 6469^2 + 4450^2 .

It is a cyclic number.

It is not a de Polignac number, because 61650461 - 2⁶ = 61650397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61650467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30825230 + 30825231.

It is an arithmetic number, because the mean of its divisors is an integer number (30825231).

Almost surely, 2^61650461 is an apocalyptic number.

It is an amenable number.

61650461 is a deficient number, since it is larger than the sum of its proper divisors (1).

61650461 is an equidigital number, since it uses as much as digits as its factorization.

61650461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 61650461 is about 7851.7807534342. The cubic root of 61650461 is about 395.0439752355.

The spelling of 61650461 in words is "sixty-one million, six hundred fifty thousand, four hundred sixty-one".