71725254 has 16 divisors (see below), whose sum is σ = 144499248. Its totient is φ = 23733632.

The previous prime is 71725253. The next prime is 71725267. The reversal of 71725254 is 45252717.

It is a super-2 number, since 2×71725254² = 10289024122729032, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71725253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42807 + ... + 44450.

It is an arithmetic number, because the mean of its divisors is an integer number (9031203).

Almost surely, 2^71725254 is an apocalyptic number.

71725254 is an abundant number, since it is smaller than the sum of its proper divisors (72773994).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71725254 is a wasteful number, since it uses less digits than its factorization.

71725254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87399.

The product of its digits is 19600, while the sum is 33.

The square root of 71725254 is about 8469.0763368859. The cubic root of 71725254 is about 415.4869283322.

The spelling of 71725254 in words is "seventy-one million, seven hundred twenty-five thousand, two hundred fifty-four".