71955925 has 12 divisors (see below), whose sum is σ = 89331460. Its totient is φ = 57496320.

The previous prime is 71955913. The next prime is 71955941. The reversal of 71955925 is 52955917.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 2883204 + 69072721 = 1698^2 + 8311^2 .

It is not a de Polignac number, because 71955925 - 2⁷ = 71955797 is a prime.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36259 + ... + 38191.

Almost surely, 2^71955925 is an apocalyptic number.

It is an amenable number.

71955925 is a deficient number, since it is larger than the sum of its proper divisors (17375535).

71955925 is a wasteful number, since it uses less digits than its factorization.

71955925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3432 (or 3427 counting only the distinct ones).

The product of its digits is 141750, while the sum is 43.

The square root of 71955925 is about 8482.6838323729. The cubic root of 71955925 is about 415.9318586769.

It can be divided in two parts, 719 and 55925, that added together give a square (56644 = 238²).

The spelling of 71955925 in words is "seventy-one million, nine hundred fifty-five thousand, nine hundred twenty-five".