52140538 has 8 divisors (see below), whose sum is σ = 78556032. Its totient is φ = 25955196.

The previous prime is 52140533. The next prime is 52140559. The reversal of 52140538 is 83504125.

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

It is not an unprimeable number, because it can be changed into a prime (52140533) 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, 56970 + ... + 57877.

It is an arithmetic number, because the mean of its divisors is an integer number (9819504).

Almost surely, 2^52140538 is an apocalyptic number.

52140538 is a deficient number, since it is larger than the sum of its proper divisors (26415494).

52140538 is a wasteful number, since it uses less digits than its factorization.

52140538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115076.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 52140538 is about 7220.8405327912. The cubic root of 52140538 is about 373.5870693955.

The spelling of 52140538 in words is "fifty-two million, one hundred forty thousand, five hundred thirty-eight".