61206259 has 2 divisors, whose sum is σ = 61206260. Its totient is φ = 61206258.

The previous prime is 61206221. The next prime is 61206281. The reversal of 61206259 is 95260216.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61206259 - 2¹⁷ = 61075187 is a prime.

It is a super-2 number, since 2×61206259² = 7492412281550162, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61206259.

It is not a weakly prime, because it can be changed into another prime (61206359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30603129 + 30603130.

It is an arithmetic number, because the mean of its divisors is an integer number (30603130).

Almost surely, 2^61206259 is an apocalyptic number.

61206259 is a deficient number, since it is larger than the sum of its proper divisors (1).

61206259 is an equidigital number, since it uses as much as digits as its factorization.

61206259 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 61206259 is about 7823.4429121711. The cubic root of 61206259 is about 394.0929011265.

The spelling of 61206259 in words is "sixty-one million, two hundred six thousand, two hundred fifty-nine".