61650067 has 2 divisors, whose sum is σ = 61650068. Its totient is φ = 61650066.

The previous prime is 61650049. The next prime is 61650119. The reversal of 61650067 is 76005616.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61650067 - 2¹¹ = 61648019 is a prime.

It is a super-2 number, since 2×61650067² = 7601461522208978, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (61650037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30825033 + 30825034.

It is an arithmetic number, because the mean of its divisors is an integer number (30825034).

Almost surely, 2^61650067 is an apocalyptic number.

61650067 is a deficient number, since it is larger than the sum of its proper divisors (1).

61650067 is an equidigital number, since it uses as much as digits as its factorization.

61650067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 61650067 is about 7851.7556635443. The cubic root of 61650067 is about 395.0431336756.

The spelling of 61650067 in words is "sixty-one million, six hundred fifty thousand, sixty-seven".