61099252 has 6 divisors (see below), whose sum is σ = 106923698. Its totient is φ = 30549624.

The previous prime is 61099249. The next prime is 61099253. The reversal of 61099252 is 25299016.

61099252 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 54819216 + 6280036 = 7404^2 + 2506^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61099253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7637403 + ... + 7637410.

Almost surely, 2^61099252 is an apocalyptic number.

It is an amenable number.

61099252 is a deficient number, since it is larger than the sum of its proper divisors (45824446).

61099252 is a wasteful number, since it uses less digits than its factorization.

61099252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15274817 (or 15274815 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 61099252 is about 7816.6010516080. The cubic root of 61099252 is about 393.8631027401.

The spelling of 61099252 in words is "sixty-one million, ninety-nine thousand, two hundred fifty-two".