71725025 has 6 divisors (see below), whose sum is σ = 88939062. Its totient is φ = 57380000.

The previous prime is 71725013. The next prime is 71725037. The reversal of 71725025 is 52052717.

It is an interprime number because it is at equal distance from previous prime (71725013) and next prime (71725037).

It can be written as a sum of positive squares in 3 ways, for example, as 16386304 + 55338721 = 4048^2 + 7439^2 .

It is not a de Polignac number, because 71725025 - 2⁴ = 71725009 is a prime.

It is a super-2 number, since 2×71725025² = 10288958422501250, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1434476 + ... + 1434525.

It is an arithmetic number, because the mean of its divisors is an integer number (14823177).

Almost surely, 2^71725025 is an apocalyptic number.

It is an amenable number.

71725025 is a deficient number, since it is larger than the sum of its proper divisors (17214037).

71725025 is a wasteful number, since it uses less digits than its factorization.

71725025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2869011 (or 2869006 counting only the distinct ones).

The product of its (nonzero) digits is 4900, while the sum is 29.

The square root of 71725025 is about 8469.0628171008. The cubic root of 71725025 is about 415.4864861513.

The spelling of 71725025 in words is "seventy-one million, seven hundred twenty-five thousand, twenty-five".