52722645 has 24 divisors (see below), whose sum is σ = 85429344. Its totient is φ = 27765216.

The previous prime is 52722643. The next prime is 52722671. The reversal of 52722645 is 54622725.

It is not a de Polignac number, because 52722645 - 2¹ = 52722643 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52722643) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 171582 + ... + 171888.

It is an arithmetic number, because the mean of its divisors is an integer number (3559556).

Almost surely, 2^52722645 is an apocalyptic number.

It is an amenable number.

52722645 is a deficient number, since it is larger than the sum of its proper divisors (32706699).

52722645 is a wasteful number, since it uses less digits than its factorization.

52722645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529 (or 422 counting only the distinct ones).

The product of its digits is 33600, while the sum is 33.

The square root of 52722645 is about 7261.0360830945. The cubic root of 52722645 is about 374.9721934937.

The spelling of 52722645 in words is "fifty-two million, seven hundred twenty-two thousand, six hundred forty-five".