53958840 has 64 divisors (see below), whose sum is σ = 174333600. Its totient is φ = 13281792.

The previous prime is 53958787. The next prime is 53958893. The reversal of 53958840 is 4885935.

It is an interprime number because it is at equal distance from previous prime (53958787) and next prime (53958893).

It is a junction number, because it is equal to n+sod(n) for n = 53958792 and 53958801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15735 + ... + 18854.

Almost surely, 2^53958840 is an apocalyptic number.

It is an amenable number.

53958840 is an abundant number, since it is smaller than the sum of its proper divisors (120374760).

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

53958840 is a wasteful number, since it uses less digits than its factorization.

53958840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34616 (or 34612 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 42.

The square root of 53958840 is about 7345.6681112068. The cubic root of 53958840 is about 377.8802565761.

The spelling of 53958840 in words is "fifty-three million, nine hundred fifty-eight thousand, eight hundred forty".