53637940 has 12 divisors (see below), whose sum is σ = 112639716. Its totient is φ = 21455168.

The previous prime is 53637937. The next prime is 53637943. The reversal of 53637940 is 4973635.

53637940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (53637937) and next prime (53637943).

It can be written as a sum of positive squares in 2 ways, for example, as 36893476 + 16744464 = 6074^2 + 4092^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 53637940.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53637943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1340929 + ... + 1340968.

It is an arithmetic number, because the mean of its divisors is an integer number (9386643).

Almost surely, 2^53637940 is an apocalyptic number.

It is an amenable number.

53637940 is an abundant number, since it is smaller than the sum of its proper divisors (59001776).

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

53637940 is a wasteful number, since it uses less digits than its factorization.

53637940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2681906 (or 2681904 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 37.

The square root of 53637940 is about 7323.7927332769. The cubic root of 53637940 is about 377.1296661998.

The spelling of 53637940 in words is "fifty-three million, six hundred thirty-seven thousand, nine hundred forty".