61135025 has 12 divisors (see below), whose sum is σ = 86637312. Its totient is φ = 41921040.

The previous prime is 61135013. The next prime is 61135037. The reversal of 61135025 is 52053116.

61135025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (61135013) and next prime (61135037).

It is not a de Polignac number, because 61135025 - 2⁶ = 61134961 is a prime.

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 11 ways as a sum of consecutive naturals, for example, 174497 + ... + 174846.

It is an arithmetic number, because the mean of its divisors is an integer number (7219776).

Almost surely, 2^61135025 is an apocalyptic number.

It is an amenable number.

61135025 is a deficient number, since it is larger than the sum of its proper divisors (25502287).

61135025 is a wasteful number, since it uses less digits than its factorization.

61135025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349360 (or 349355 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 61135025 is about 7818.8889875736. Note that the first 3 decimals coincide. The cubic root of 61135025 is about 393.9399553769.

The spelling of 61135025 in words is "sixty-one million, one hundred thirty-five thousand, twenty-five".