52466138 has 4 divisors (see below), whose sum is σ = 78699210. Its totient is φ = 26233068.

The previous prime is 52466137. The next prime is 52466143. The reversal of 52466138 is 83166425.

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., 48958009 + 3508129 = 6997^2 + 1873^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 52466098 and 52466107.

It is not an unprimeable number, because it can be changed into a prime (52466137) 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, 13116533 + ... + 13116536.

Almost surely, 2^52466138 is an apocalyptic number.

52466138 is a deficient number, since it is larger than the sum of its proper divisors (26233072).

52466138 is a wasteful number, since it uses less digits than its factorization.

52466138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26233071.

The product of its digits is 34560, while the sum is 35.

The square root of 52466138 is about 7243.3512961888. The cubic root of 52466138 is about 374.3630978571.

The spelling of 52466138 in words is "fifty-two million, four hundred sixty-six thousand, one hundred thirty-eight".