52721326 has 32 divisors (see below), whose sum is σ = 94385088. Its totient is φ = 21615360.

The previous prime is 52721323. The next prime is 52721341. The reversal of 52721326 is 62312725.

It is a junction number, because it is equal to n+sod(n) for n = 52721294 and 52721303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52721323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29556 + ... + 31288.

It is an arithmetic number, because the mean of its divisors is an integer number (2949534).

Almost surely, 2^52721326 is an apocalyptic number.

52721326 is a deficient number, since it is larger than the sum of its proper divisors (41663762).

52721326 is a wasteful number, since it uses less digits than its factorization.

52721326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1836.

The product of its digits is 5040, while the sum is 28.

The square root of 52721326 is about 7260.9452552681. The cubic root of 52721326 is about 374.9690664854.

The spelling of 52721326 in words is "fifty-two million, seven hundred twenty-one thousand, three hundred twenty-six".