52637878 has 4 divisors (see below), whose sum is σ = 78956820. Its totient is φ = 26318938.

The previous prime is 52637873. The next prime is 52637911. The reversal of 52637878 is 87873625.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52637873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13159468 + ... + 13159471.

It is an arithmetic number, because the mean of its divisors is an integer number (19739205).

Almost surely, 2^52637878 is an apocalyptic number.

52637878 is a deficient number, since it is larger than the sum of its proper divisors (26318942).

52637878 is a wasteful number, since it uses less digits than its factorization.

52637878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26318941.

The product of its digits is 564480, while the sum is 46.

The square root of 52637878 is about 7255.1966203543. The cubic root of 52637878 is about 374.7711267108.

It can be divided in two parts, 526 and 37878, that multiplied together give a triangular number (19923828 = T₆₃₁₂).

The spelling of 52637878 in words is "fifty-two million, six hundred thirty-seven thousand, eight hundred seventy-eight".