52651538 has 4 divisors (see below), whose sum is σ = 78977310. Its totient is φ = 26325768.

The previous prime is 52651537. The next prime is 52651549. The reversal of 52651538 is 83515625.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 49885969 + 2765569 = 7063^2 + 1663^2 .

It is a junction number, because it is equal to n+sod(n) for n = 52651498 and 52651507.

It is not an unprimeable number, because it can be changed into a prime (52651537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13162883 + ... + 13162886.

Almost surely, 2^52651538 is an apocalyptic number.

52651538 is a deficient number, since it is larger than the sum of its proper divisors (26325772).

52651538 is a wasteful number, since it uses less digits than its factorization.

52651538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26325771.

The product of its digits is 36000, while the sum is 35.

The square root of 52651538 is about 7256.1379534846. The cubic root of 52651538 is about 374.8035427264.

The spelling of 52651538 in words is "fifty-two million, six hundred fifty-one thousand, five hundred thirty-eight".