71072025 has 12 divisors (see below), whose sum is σ = 117505872. Its totient is φ = 37905040.

The previous prime is 71072017. The next prime is 71072041. The reversal of 71072025 is 52027017.

It is not a de Polignac number, because 71072025 - 2³ = 71072017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 71071986 and 71072004.

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, 473739 + ... + 473888.

It is an arithmetic number, because the mean of its divisors is an integer number (9792156).

Almost surely, 2^71072025 is an apocalyptic number.

71072025 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

71072025 is a deficient number, since it is larger than the sum of its proper divisors (46433847).

71072025 is a wasteful number, since it uses less digits than its factorization.

71072025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 947640 (or 947635 counting only the distinct ones).

The product of its (nonzero) digits is 980, while the sum is 24.

The square root of 71072025 is about 8430.4225872728. The cubic root of 71072025 is about 414.2217475272.

The spelling of 71072025 in words is "seventy-one million, seventy-two thousand, twenty-five".