75995550 has 96 divisors (see below), whose sum is σ = 214673760. Its totient is φ = 19756800.

The previous prime is 75995533. The next prime is 75995567. The reversal of 75995550 is 5559957.

75995550 is a `hidden beast` number, since 7 + 5 + 9 + 95 + 550 = 666.

It is an interprime number because it is at equal distance from previous prime (75995533) and next prime (75995567).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 75995496 and 75995505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 54664 + ... + 56036.

It is an arithmetic number, because the mean of its divisors is an integer number (2236185).

Almost surely, 2^75995550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 75995550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107336880).

75995550 is an abundant number, since it is smaller than the sum of its proper divisors (138678210).

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

75995550 is a wasteful number, since it uses less digits than its factorization.

75995550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1435 (or 1424 counting only the distinct ones).

The product of its (nonzero) digits is 354375, while the sum is 45.

The square root of 75995550 is about 8717.5426583413. The cubic root of 75995550 is about 423.5740909769.

The spelling of 75995550 in words is "seventy-five million, nine hundred ninety-five thousand, five hundred fifty".