53247420 has 36 divisors (see below), whose sum is σ = 161517720. Its totient is φ = 14199264.

The previous prime is 53247419. The next prime is 53247427. The reversal of 53247420 is 2474235.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53247427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 147730 + ... + 148089.

Almost surely, 2^53247420 is an apocalyptic number.

It is an amenable number.

53247420 is an abundant number, since it is smaller than the sum of its proper divisors (108270300).

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

53247420 is a wasteful number, since it uses less digits than its factorization.

53247420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295834 (or 295829 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 53247420 is about 7297.0829788348. The cubic root of 53247420 is about 376.2121840707.

The spelling of 53247420 in words is "fifty-three million, two hundred forty-seven thousand, four hundred twenty".