52619638 has 4 divisors (see below), whose sum is σ = 78929460. Its totient is φ = 26309818.

The previous prime is 52619629. The next prime is 52619639. The reversal of 52619638 is 83691625.

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

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 52619638.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52619639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13154908 + ... + 13154911.

It is an arithmetic number, because the mean of its divisors is an integer number (19732365).

Almost surely, 2^52619638 is an apocalyptic number.

52619638 is a deficient number, since it is larger than the sum of its proper divisors (26309822).

52619638 is a wasteful number, since it uses less digits than its factorization.

52619638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26309821.

The product of its digits is 77760, while the sum is 40.

The square root of 52619638 is about 7253.9394814128. The cubic root of 52619638 is about 374.7278333301.

It can be divided in two parts, 526 and 19638, that added together give a square (20164 = 142²).

The spelling of 52619638 in words is "fifty-two million, six hundred nineteen thousand, six hundred thirty-eight".