52545940 has 12 divisors (see below), whose sum is σ = 110346516. Its totient is φ = 21018368.

The previous prime is 52545937. The next prime is 52545943. The reversal of 52545940 is 4954525.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (52545937) and next prime (52545943).

It can be written as a sum of positive squares in 2 ways, for example, as 36529936 + 16016004 = 6044^2 + 4002^2 .

It is a super-2 number, since 2×52545940² = 5522151620967200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 52545896 and 52545905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52545943) 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, 1313629 + ... + 1313668.

It is an arithmetic number, because the mean of its divisors is an integer number (9195543).

Almost surely, 2^52545940 is an apocalyptic number.

It is an amenable number.

52545940 is an abundant number, since it is smaller than the sum of its proper divisors (57800576).

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

52545940 is a wasteful number, since it uses less digits than its factorization.

52545940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2627306 (or 2627304 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 34.

The square root of 52545940 is about 7248.8578410671. The cubic root of 52545940 is about 374.5528061851.

The spelling of 52545940 in words is "fifty-two million, five hundred forty-five thousand, nine hundred forty".