75455712 has 120 divisors (see below), whose sum is σ = 227409336. Its totient is φ = 24530688.

The previous prime is 75455701. The next prime is 75455773. The reversal of 75455712 is 21755457.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 111118 + ... + 111794.

Almost surely, 2^75455712 is an apocalyptic number.

75455712 is a gapful number since it is divisible by the number (72) 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 75455712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113704668).

75455712 is an abundant number, since it is smaller than the sum of its proper divisors (151953624).

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

75455712 is a wasteful number, since it uses less digits than its factorization.

75455712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 742 (or 725 counting only the distinct ones).

The product of its digits is 49000, while the sum is 36.

The square root of 75455712 is about 8686.5247366251. The cubic root of 75455712 is about 422.5687471433.

It can be divided in two parts, 75455 and 712, that added together give a palindrome (76167).

The spelling of 75455712 in words is "seventy-five million, four hundred fifty-five thousand, seven hundred twelve".