61049999 has 2 divisors, whose sum is σ = 61050000. Its totient is φ = 61049998.

The previous prime is 61049929. The next prime is 61050001. The reversal of 61049999 is 99994016.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61049999 - 2⁸ = 61049743 is a prime.

Together with 61050001, it forms a pair of twin primes.

It is a Chen prime.

61049999 is a modest number, since divided by 9999 gives 6104 as remainder.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61049929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30524999 + 30525000.

It is an arithmetic number, because the mean of its divisors is an integer number (30525000).

Almost surely, 2^61049999 is an apocalyptic number.

61049999 is a deficient number, since it is larger than the sum of its proper divisors (1).

61049999 is an equidigital number, since it uses as much as digits as its factorization.

61049999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 157464, while the sum is 47.

The square root of 61049999 is about 7813.4498782548. The cubic root of 61049999 is about 393.7572413550.

The spelling of 61049999 in words is "sixty-one million, forty-nine thousand, nine hundred ninety-nine".