61330519 has 2 divisors, whose sum is σ = 61330520. Its totient is φ = 61330518.

The previous prime is 61330463. The next prime is 61330567. The reversal of 61330519 is 91503316.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61330519 - 2⁷ = 61330391 is a prime.

It is a super-2 number, since 2×61330519² = 7522865121618722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61330579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30665259 + 30665260.

It is an arithmetic number, because the mean of its divisors is an integer number (30665260).

Almost surely, 2^61330519 is an apocalyptic number.

61330519 is a deficient number, since it is larger than the sum of its proper divisors (1).

61330519 is an equidigital number, since it uses as much as digits as its factorization.

61330519 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2430, while the sum is 28.

The square root of 61330519 is about 7831.3804019470. The cubic root of 61330519 is about 394.3594146206.

The spelling of 61330519 in words is "sixty-one million, three hundred thirty thousand, five hundred nineteen".