53214540 has 24 divisors (see below), whose sum is σ = 149000880. Its totient is φ = 14190528.

The previous prime is 53214527. The next prime is 53214541. The reversal of 53214540 is 4541235.

It is a self number, because there is not a number n which added to its sum of digits gives 53214540.

It is not an unprimeable number, because it can be changed into a prime (53214541) 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, 443395 + ... + 443514.

It is an arithmetic number, because the mean of its divisors is an integer number (6208370).

Almost surely, 2^53214540 is an apocalyptic number.

It is an amenable number.

53214540 is an abundant number, since it is smaller than the sum of its proper divisors (95786340).

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

53214540 is a wasteful number, since it uses less digits than its factorization.

53214540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 886921 (or 886919 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 53214540 is about 7294.8296758732. The cubic root of 53214540 is about 376.1347317823.

Adding to 53214540 its reverse (4541235), we get a palindrome (57755775).

The spelling of 53214540 in words is "fifty-three million, two hundred fourteen thousand, five hundred forty".