61254577 has 2 divisors, whose sum is σ = 61254578. Its totient is φ = 61254576.

The previous prime is 61254559. The next prime is 61254617. The reversal of 61254577 is 77545216.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61214976 + 39601 = 7824^2 + 199^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61254577 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (61254547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30627288 + 30627289.

It is an arithmetic number, because the mean of its divisors is an integer number (30627289).

Almost surely, 2^61254577 is an apocalyptic number.

It is an amenable number.

61254577 is a deficient number, since it is larger than the sum of its proper divisors (1).

61254577 is an equidigital number, since it uses as much as digits as its factorization.

61254577 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58800, while the sum is 37.

The square root of 61254577 is about 7826.5303295905. The cubic root of 61254577 is about 394.1965766470.

The spelling of 61254577 in words is "sixty-one million, two hundred fifty-four thousand, five hundred seventy-seven".