61098253 has 2 divisors, whose sum is σ = 61098254. Its totient is φ = 61098252.

The previous prime is 61098229. The next prime is 61098283. The reversal of 61098253 is 35289016.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55323844 + 5774409 = 7438^2 + 2403^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61098253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61098283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30549126 + 30549127.

It is an arithmetic number, because the mean of its divisors is an integer number (30549127).

Almost surely, 2^61098253 is an apocalyptic number.

It is an amenable number.

61098253 is a deficient number, since it is larger than the sum of its proper divisors (1).

61098253 is an equidigital number, since it uses as much as digits as its factorization.

61098253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 61098253 is about 7816.5371488914. The cubic root of 61098253 is about 393.8609561159.

The spelling of 61098253 in words is "sixty-one million, ninety-eight thousand, two hundred fifty-three".