52678736 has 20 divisors (see below), whose sum is σ = 111344064. Its totient is φ = 23944800.

The previous prime is 52678723. The next prime is 52678739. The reversal of 52678736 is 63787625.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52678739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149480 + ... + 149831.

Almost surely, 2^52678736 is an apocalyptic number.

It is an amenable number.

52678736 is an abundant number, since it is smaller than the sum of its proper divisors (58665328).

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

52678736 is a wasteful number, since it uses less digits than its factorization.

52678736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299330 (or 299324 counting only the distinct ones).

The product of its digits is 423360, while the sum is 44.

The square root of 52678736 is about 7258.0118489845. The cubic root of 52678736 is about 374.8680685527.

Subtracting 52678736 from its reverse (63787625), we obtain a square (11108889 = 3333²).

The spelling of 52678736 in words is "fifty-two million, six hundred seventy-eight thousand, seven hundred thirty-six".