52640051 has 8 divisors (see below), whose sum is σ = 55545600. Its totient is φ = 49748040.

The previous prime is 52639999. The next prime is 52640053. The reversal of 52640051 is 15004625.

52640051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 52640051 - 2⁶ = 52639987 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52639999 and 52640026.

It is not an unprimeable number, because it can be changed into a prime (52640053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5186 + ... + 11496.

It is an arithmetic number, because the mean of its divisors is an integer number (6943200).

Almost surely, 2^52640051 is an apocalyptic number.

52640051 is a deficient number, since it is larger than the sum of its proper divisors (2905549).

52640051 is a wasteful number, since it uses less digits than its factorization.

52640051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6769.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 52640051 is about 7255.3463735372. The cubic root of 52640051 is about 374.7762837478.

Adding to 52640051 its reverse (15004625), we get a palindrome (67644676).

The spelling of 52640051 in words is "fifty-two million, six hundred forty thousand, fifty-one".