52662978 has 12 divisors (see below), whose sum is σ = 114103158. Its totient is φ = 17554320.

The previous prime is 52662971. The next prime is 52663019. The reversal of 52662978 is 87926625.

It can be written as a sum of positive squares in only one way, i.e., 32114889 + 20548089 = 5667^2 + 4533^2 .

It is not an unprimeable number, because it can be changed into a prime (52662971) 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 in 5 ways as a sum of consecutive naturals, for example, 1462843 + ... + 1462878.

Almost surely, 2^52662978 is an apocalyptic number.

52662978 is an abundant number, since it is smaller than the sum of its proper divisors (61440180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52662978 is a wasteful number, since it uses less digits than its factorization.

52662978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2925729 (or 2925726 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 52662978 is about 7256.9262088022. The cubic root of 52662978 is about 374.8306862324.

It can be divided in two parts, 526 and 62978, that added together give a square (63504 = 252²).

The spelling of 52662978 in words is "fifty-two million, six hundred sixty-two thousand, nine hundred seventy-eight".