53698820 has 48 divisors (see below), whose sum is σ = 133045248. Its totient is φ = 17815680.

The previous prime is 53698817. The next prime is 53698829. The reversal of 53698820 is 2889635.

It is not an unprimeable number, because it can be changed into a prime (53698829) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1847 + ... + 10526.

It is an arithmetic number, because the mean of its divisors is an integer number (2771776).

Almost surely, 2^53698820 is an apocalyptic number.

It is an amenable number.

53698820 is an abundant number, since it is smaller than the sum of its proper divisors (79346428).

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

53698820 is a wasteful number, since it uses less digits than its factorization.

53698820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12420 (or 12418 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 53698820 is about 7327.9478709936. The cubic root of 53698820 is about 377.2722951736.

The spelling of 53698820 in words is "fifty-three million, six hundred ninety-eight thousand, eight hundred twenty".