75354561 has 12 divisors (see below), whose sum is σ = 109704192. Its totient is φ = 49840056.

The previous prime is 75354553. The next prime is 75354593. The reversal of 75354561 is 16545357.

75354561 is a `hidden beast` number, since 7 + 53 + 545 + 61 = 666.

It is not a de Polignac number, because 75354561 - 2³ = 75354553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (75354061) 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, 31821 + ... + 34106.

It is an arithmetic number, because the mean of its divisors is an integer number (9142016).

Almost surely, 2^75354561 is an apocalyptic number.

It is an amenable number.

75354561 is a deficient number, since it is larger than the sum of its proper divisors (34349631).

75354561 is a wasteful number, since it uses less digits than its factorization.

75354561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66060 (or 66057 counting only the distinct ones).

The product of its digits is 63000, while the sum is 36.

The square root of 75354561 is about 8680.7004901678. The cubic root of 75354561 is about 422.3798400169.

The spelling of 75354561 in words is "seventy-five million, three hundred fifty-four thousand, five hundred sixty-one".