52147438 has 16 divisors (see below), whose sum is σ = 94101120. Its totient is φ = 21172536.

The previous prime is 52147429. The next prime is 52147439. The reversal of 52147438 is 83474125.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52147439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97756 + ... + 98287.

It is an arithmetic number, because the mean of its divisors is an integer number (5881320).

Almost surely, 2^52147438 is an apocalyptic number.

52147438 is a deficient number, since it is larger than the sum of its proper divisors (41953682).

52147438 is a wasteful number, since it uses less digits than its factorization.

52147438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196071.

The product of its digits is 26880, while the sum is 34.

The square root of 52147438 is about 7221.3183006983. The cubic root of 52147438 is about 373.6035481737.

The spelling of 52147438 in words is "fifty-two million, one hundred forty-seven thousand, four hundred thirty-eight".