71003725 has 24 divisors (see below), whose sum is σ = 95384520. Its totient is φ = 52120320.

The previous prime is 71003693. The next prime is 71003749. The reversal of 71003725 is 52730017.

It can be written as a sum of positive squares in 12 ways, for example, as 32103556 + 38900169 = 5666^2 + 6237^2 .

It is not a de Polignac number, because 71003725 - 2⁵ = 71003693 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 71003725.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63471 + ... + 64579.

It is an arithmetic number, because the mean of its divisors is an integer number (3974355).

Almost surely, 2^71003725 is an apocalyptic number.

It is an amenable number.

71003725 is a deficient number, since it is larger than the sum of its proper divisors (24380795).

71003725 is a wasteful number, since it uses less digits than its factorization.

71003725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1329 (or 1324 counting only the distinct ones).

The product of its (nonzero) digits is 1470, while the sum is 25.

The square root of 71003725 is about 8426.3708083611. The cubic root of 71003725 is about 414.0890163866.

The spelling of 71003725 in words is "seventy-one million, three thousand, seven hundred twenty-five".