52438737 has 8 divisors (see below), whose sum is σ = 75296704. Its totient is φ = 32269968.

The previous prime is 52438733. The next prime is 52438769. The reversal of 52438737 is 73783425.

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

It is not a de Polignac number, because 52438737 - 2² = 52438733 is a prime.

It is a super-2 number, since 2×52438737² = 5499642276310338, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 1344583 = 52438737 / (5 + 2 + 4 + 3 + 8 + 7 + 3 + 7).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52438695 and 52438704.

It is not an unprimeable number, because it can be changed into a prime (52438733) 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, 672253 + ... + 672330.

It is an arithmetic number, because the mean of its divisors is an integer number (9412088).

Almost surely, 2^52438737 is an apocalyptic number.

It is an amenable number.

52438737 is a deficient number, since it is larger than the sum of its proper divisors (22857967).

52438737 is a wasteful number, since it uses less digits than its factorization.

52438737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1344599.

The product of its digits is 141120, while the sum is 39.

The square root of 52438737 is about 7241.4595904417. The cubic root of 52438737 is about 374.2979148018.

The spelling of 52438737 in words is "fifty-two million, four hundred thirty-eight thousand, seven hundred thirty-seven".