53798640 has 160 divisors (see below), whose sum is σ = 196939776. Its totient is φ = 11888640.

The previous prime is 53798627. The next prime is 53798653. The reversal of 53798640 is 4689735.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (53798627) and next prime (53798653).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 53798592 and 53798601.

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, 51564 + ... + 52596.

Almost surely, 2^53798640 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 53798640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98469888).

53798640 is an abundant number, since it is smaller than the sum of its proper divisors (143141136).

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

53798640 is a wasteful number, since it uses less digits than its factorization.

53798640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1087 (or 1081 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 53798640 is about 7334.7556196509. The cubic root of 53798640 is about 377.5059192382.

The spelling of 53798640 in words is "fifty-three million, seven hundred ninety-eight thousand, six hundred forty".