53106240 has 224 divisors, whose sum is σ = 189609984. Its totient is φ = 12482560.

The previous prime is 53106199. The next prime is 53106281. The reversal of 53106240 is 4260135.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (53106199) and next prime (53106281).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 496267 + ... + 496373.

Almost surely, 2^53106240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53106240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94804992).

53106240 is an abundant number, since it is smaller than the sum of its proper divisors (136503744).

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

53106240 is a wasteful number, since it uses less digits than its factorization.

53106240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185 (or 175 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 53106240 is about 7287.4028295409. The cubic root of 53106240 is about 375.8793939426.

Adding to 53106240 its reverse (4260135), we get a palindrome (57366375).

The spelling of 53106240 in words is "fifty-three million, one hundred six thousand, two hundred forty".