52691801 has 8 divisors (see below), whose sum is σ = 53387208. Its totient is φ = 52000000.

The previous prime is 52691791. The next prime is 52691809. The reversal of 52691801 is 10819625.

It can be written as a sum of positive squares in 4 ways, for example, as 19571776 + 33120025 = 4424^2 + 5755^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52691801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52691809) by changing a digit.

It is a Zeisel number, with parameters (3, 98).

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39851 + ... + 41151.

It is an arithmetic number, because the mean of its divisors is an integer number (6673401).

Almost surely, 2^52691801 is an apocalyptic number.

It is an amenable number.

52691801 is a deficient number, since it is larger than the sum of its proper divisors (695407).

52691801 is a wasteful number, since it uses less digits than its factorization.

52691801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1803.

The product of its (nonzero) digits is 4320, while the sum is 32.

The square root of 52691801 is about 7258.9118330505. The cubic root of 52691801 is about 374.8990566821.

The spelling of 52691801 in words is "fifty-two million, six hundred ninety-one thousand, eight hundred one".