52638142 has 8 divisors (see below), whose sum is σ = 79007976. Its totient is φ = 26302152.

The previous prime is 52638139. The next prime is 52638143. The reversal of 52638142 is 24183625.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52638143) 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, 4128 + ... + 11059.

It is an arithmetic number, because the mean of its divisors is an integer number (9875997).

Almost surely, 2^52638142 is an apocalyptic number.

52638142 is a deficient number, since it is larger than the sum of its proper divisors (26369834).

52638142 is a wasteful number, since it uses less digits than its factorization.

52638142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16922.

The product of its digits is 11520, while the sum is 31.

The square root of 52638142 is about 7255.2148141871. The cubic root of 52638142 is about 374.7717532521.

The spelling of 52638142 in words is "fifty-two million, six hundred thirty-eight thousand, one hundred forty-two".