61753009 has 2 divisors, whose sum is σ = 61753010. Its totient is φ = 61753008.

The previous prime is 61752997. The next prime is 61753019. The reversal of 61753009 is 90035716.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61701025 + 51984 = 7855^2 + 228^2 .

It is a cyclic number.

It is not a de Polignac number, because 61753009 - 2⁹ = 61752497 is a prime.

It is not a weakly prime, because it can be changed into another prime (61753019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30876504 + 30876505.

It is an arithmetic number, because the mean of its divisors is an integer number (30876505).

Almost surely, 2^61753009 is an apocalyptic number.

It is an amenable number.

61753009 is a deficient number, since it is larger than the sum of its proper divisors (1).

61753009 is an equidigital number, since it uses as much as digits as its factorization.

61753009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5670, while the sum is 31.

The square root of 61753009 is about 7858.3082785037. The cubic root of 61753009 is about 395.2628896765.

The spelling of 61753009 in words is "sixty-one million, seven hundred fifty-three thousand, nine".