52638971 has 16 divisors (see below), whose sum is σ = 66251520. Its totient is φ = 40627680.

The previous prime is 52638959. The next prime is 52638977. The reversal of 52638971 is 17983625.

It is a cyclic number.

It is not a de Polignac number, because 52638971 - 2⁶ = 52638907 is a prime.

It is a super-2 number, since 2×52638971² = 5541722535877682, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52638977) 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, 5045 + ... + 11433.

It is an arithmetic number, because the mean of its divisors is an integer number (4140720).

Almost surely, 2^52638971 is an apocalyptic number.

52638971 is a deficient number, since it is larger than the sum of its proper divisors (13612549).

52638971 is a wasteful number, since it uses less digits than its factorization.

52638971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6514.

The product of its digits is 90720, while the sum is 41.

The square root of 52638971 is about 7255.2719452823. The cubic root of 52638971 is about 374.7737206731.

Subtracting from 52638971 its sum of digits (41), we obtain a triangular number (52638930 = T₁₀₂₆₀).

The spelling of 52638971 in words is "fifty-two million, six hundred thirty-eight thousand, nine hundred seventy-one".