51652571 has 4 divisors (see below), whose sum is σ = 52380144. Its totient is φ = 50925000.

The previous prime is 51652547. The next prime is 51652607. The reversal of 51652571 is 17525615.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17525615 = 5 ⋅3505123.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51652571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51652771) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 363680 + ... + 363821.

It is an arithmetic number, because the mean of its divisors is an integer number (13095036).

Almost surely, 2^51652571 is an apocalyptic number.

51652571 is a deficient number, since it is larger than the sum of its proper divisors (727573).

51652571 is an equidigital number, since it uses as much as digits as its factorization.

51652571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727572.

The product of its digits is 10500, while the sum is 32.

The square root of 51652571 is about 7186.9723110640. The cubic root of 51652571 is about 372.4179865388.

The spelling of 51652571 in words is "fifty-one million, six hundred fifty-two thousand, five hundred seventy-one".