75390552 has 48 divisors (see below), whose sum is σ = 205700040. Its totient is φ = 24943488.

The previous prime is 75390551. The next prime is 75390583. The reversal of 75390552 is 25509357.

75390552 is a `hidden beast` number, since 75 + 39 + 0 + 552 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75390551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6043 + ... + 13685.

Almost surely, 2^75390552 is an apocalyptic number.

75390552 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 75390552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102850020).

75390552 is an abundant number, since it is smaller than the sum of its proper divisors (130309488).

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

75390552 is a wasteful number, since it uses less digits than its factorization.

75390552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7792 (or 7785 counting only the distinct ones).

The product of its (nonzero) digits is 47250, while the sum is 36.

The square root of 75390552 is about 8682.7732896811. The cubic root of 75390552 is about 422.4470752889.

The spelling of 75390552 in words is "seventy-five million, three hundred ninety thousand, five hundred fifty-two".