53254140 has 24 divisors (see below), whose sum is σ = 149111760. Its totient is φ = 14201088.

The previous prime is 53254139. The next prime is 53254141. The reversal of 53254140 is 4145235.

It is an interprime number because it is at equal distance from previous prime (53254139) and next prime (53254141).

It is a self number, because there is not a number n which added to its sum of digits gives 53254140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53254141) 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, 443725 + ... + 443844.

It is an arithmetic number, because the mean of its divisors is an integer number (6212990).

Almost surely, 2^53254140 is an apocalyptic number.

It is an amenable number.

53254140 is an abundant number, since it is smaller than the sum of its proper divisors (95857620).

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

53254140 is a wasteful number, since it uses less digits than its factorization.

53254140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 887581 (or 887579 counting only the distinct ones).

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

The square root of 53254140 is about 7297.5434222757. The cubic root of 53254140 is about 376.2280098111.

Adding to 53254140 its reverse (4145235), we get a palindrome (57399375).

The spelling of 53254140 in words is "fifty-three million, two hundred fifty-four thousand, one hundred forty".