61271025 has 12 divisors (see below), whose sum is σ = 101301552. Its totient is φ = 32677840.

The previous prime is 61271003. The next prime is 61271027. The reversal of 61271025 is 52017216.

It is not a de Polignac number, because 61271025 - 2⁶ = 61270961 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61270986 and 61271004.

It is not an unprimeable number, because it can be changed into a prime (61271027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 408399 + ... + 408548.

It is an arithmetic number, because the mean of its divisors is an integer number (8441796).

Almost surely, 2^61271025 is an apocalyptic number.

It is an amenable number.

61271025 is a deficient number, since it is larger than the sum of its proper divisors (40030527).

61271025 is a wasteful number, since it uses less digits than its factorization.

61271025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816960 (or 816955 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 61271025 is about 7827.5810439752. The cubic root of 61271025 is about 394.2318565415.

The spelling of 61271025 in words is "sixty-one million, two hundred seventy-one thousand, twenty-five".