53995500 has 216 divisors, whose sum is σ = 187046496. Its totient is φ = 13104000.

The previous prime is 53995493. The next prime is 53995531. The reversal of 53995500 is 559935.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 760465 + ... + 760535.

It is an arithmetic number, because the mean of its divisors is an integer number (865956).

Almost surely, 2^53995500 is an apocalyptic number.

53995500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53995500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93523248).

53995500 is an abundant number, since it is smaller than the sum of its proper divisors (133050996).

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

53995500 is a wasteful number, since it uses less digits than its factorization.

53995500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122 (or 94 counting only the distinct ones).

The product of its (nonzero) digits is 30375, while the sum is 36.

The square root of 53995500 is about 7348.1630357525. The cubic root of 53995500 is about 377.9658153347.

The spelling of 53995500 in words is "fifty-three million, nine hundred ninety-five thousand, five hundred".