52571649 has 16 divisors (see below), whose sum is σ = 75713792. Its totient is φ = 32254848.

The previous prime is 52571647. The next prime is 52571653. The reversal of 52571649 is 94617525.

It is not a de Polignac number, because 52571649 - 2¹ = 52571647 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52571647) 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, 12477 + ... + 16149.

It is an arithmetic number, because the mean of its divisors is an integer number (4732112).

Almost surely, 2^52571649 is an apocalyptic number.

It is an amenable number.

52571649 is a deficient number, since it is larger than the sum of its proper divisors (23142143).

52571649 is a wasteful number, since it uses less digits than its factorization.

52571649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4056.

The product of its digits is 75600, while the sum is 39.

The square root of 52571649 is about 7250.6309380633. The cubic root of 52571649 is about 374.6138816813.

The spelling of 52571649 in words is "fifty-two million, five hundred seventy-one thousand, six hundred forty-nine".