71902725 has 48 divisors (see below), whose sum is σ = 123950400. Its totient is φ = 36748800.

The previous prime is 71902693. The next prime is 71902739. The reversal of 71902725 is 52720917.

It is not a de Polignac number, because 71902725 - 2⁵ = 71902693 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 205851 + ... + 206199.

It is an arithmetic number, because the mean of its divisors is an integer number (2582300).

Almost surely, 2^71902725 is an apocalyptic number.

71902725 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

71902725 is a deficient number, since it is larger than the sum of its proper divisors (52047675).

71902725 is a wasteful number, since it uses less digits than its factorization.

71902725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470 (or 465 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 33.

The square root of 71902725 is about 8479.5474525472. The cubic root of 71902725 is about 415.8293281792.

It can be divided in two parts, 71902 and 725, that added together give a palindrome (72627).

The spelling of 71902725 in words is "seventy-one million, nine hundred two thousand, seven hundred twenty-five".