61125049 has 2 divisors, whose sum is σ = 61125050. Its totient is φ = 61125048.

The previous prime is 61125023. The next prime is 61125061. The reversal of 61125049 is 94052116.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60341824 + 783225 = 7768^2 + 885^2 .

It is a cyclic number.

It is not a de Polignac number, because 61125049 - 2²¹ = 59027897 is a prime.

It is not a weakly prime, because it can be changed into another prime (61125079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30562524 + 30562525.

It is an arithmetic number, because the mean of its divisors is an integer number (30562525).

Almost surely, 2^61125049 is an apocalyptic number.

It is an amenable number.

61125049 is a deficient number, since it is larger than the sum of its proper divisors (1).

61125049 is an equidigital number, since it uses as much as digits as its factorization.

61125049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 61125049 is about 7818.2510192498. The cubic root of 61125049 is about 393.9185265327.

The spelling of 61125049 in words is "sixty-one million, one hundred twenty-five thousand, forty-nine".