53247408 has 40 divisors (see below), whose sum is σ = 138787248. Its totient is φ = 17590272.

The previous prime is 53247407. The next prime is 53247409. The reversal of 53247408 is 80474235.

It is an interprime number because it is at equal distance from previous prime (53247407) and next prime (53247409).

It is not an unprimeable number, because it can be changed into a prime (53247407) 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, 516 + ... + 10332.

Almost surely, 2^53247408 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 53247408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69393624).

53247408 is an abundant number, since it is smaller than the sum of its proper divisors (85539840).

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

53247408 is a wasteful number, since it uses less digits than its factorization.

53247408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9941 (or 9935 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 53247408 is about 7297.0821565883. The cubic root of 53247408 is about 376.2121558093.

The spelling of 53247408 in words is "fifty-three million, two hundred forty-seven thousand, four hundred eight".