52138576 has 20 divisors (see below), whose sum is σ = 115449952. Its totient is φ = 22345056.

The previous prime is 52138573. The next prime is 52138577. The reversal of 52138576 is 67583125.

It is a super-2 number, since 2×52138576² = 5436862214615552, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52138573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 232650 + ... + 232873.

Almost surely, 2^52138576 is an apocalyptic number.

52138576 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

52138576 is an abundant number, since it is smaller than the sum of its proper divisors (63311376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52138576 is a wasteful number, since it uses less digits than its factorization.

52138576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465538 (or 465532 counting only the distinct ones).

The product of its digits is 50400, while the sum is 37.

The square root of 52138576 is about 7220.7046747530. The cubic root of 52138576 is about 373.5823834253.

The spelling of 52138576 in words is "fifty-two million, one hundred thirty-eight thousand, five hundred seventy-six".