75054989 has 4 divisors (see below), whose sum is σ = 75212160. Its totient is φ = 74897820.

The previous prime is 75054971. The next prime is 75055007. The reversal of 75054989 is 98945057.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 98945057 = 23 ⋅4301959.

It is an interprime number because it is at equal distance from previous prime (75054971) and next prime (75055007).

It is a cyclic number.

It is not a de Polignac number, because 75054989 - 2²⁴ = 58277773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75054919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77867 + ... + 78824.

It is an arithmetic number, because the mean of its divisors is an integer number (18803040).

Almost surely, 2^75054989 is an apocalyptic number.

It is an amenable number.

75054989 is a deficient number, since it is larger than the sum of its proper divisors (157171).

75054989 is a wasteful number, since it uses less digits than its factorization.

75054989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157170.

The product of its (nonzero) digits is 453600, while the sum is 47.

The square root of 75054989 is about 8663.4282475242. The cubic root of 75054989 is about 421.8193730698.

The spelling of 75054989 in words is "seventy-five million, fifty-four thousand, nine hundred eighty-nine".