61029025 has 6 divisors (see below), whose sum is σ = 75676022. Its totient is φ = 48823200.

The previous prime is 61029013. The next prime is 61029047. The reversal of 61029025 is 52092016.

61029025 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 3 ways, for example, as 1681 + 61027344 = 41^2 + 7812^2 .

It is not a de Polignac number, because 61029025 - 2⁷ = 61028897 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 2441161 = 61029025 / (6 + 1 + 0 + 2 + 9 + 0 + 2 + 5).

It is a Duffinian number.

It is an unprimeable number.

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 in 5 ways as a sum of consecutive naturals, for example, 1220556 + ... + 1220605.

Almost surely, 2^61029025 is an apocalyptic number.

It is an amenable number.

61029025 is a deficient number, since it is larger than the sum of its proper divisors (14646997).

61029025 is a wasteful number, since it uses less digits than its factorization.

61029025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2441171 (or 2441166 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 61029025 is about 7812.1075901449. The cubic root of 61029025 is about 393.7121438368.

The spelling of 61029025 in words is "sixty-one million, twenty-nine thousand, twenty-five".