75055845061 has 8 divisors (see below), whose sum is σ = 77087947904. Its totient is φ = 73023930000.

The previous prime is 75055845049. The next prime is 75055845071. The reversal of 75055845061 is 16054855057.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a 5-Lehmer number, since φ(75055845061) divides (75055845061-1)⁵.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75055845061 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 (75055845071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1218736 + ... + 1278838.

It is an arithmetic number, because the mean of its divisors is an integer number (9635993488).

Almost surely, 2^75055845061 is an apocalyptic number.

75055845061 is the 146440-th centered heptagonal number.

It is an amenable number.

75055845061 is a deficient number, since it is larger than the sum of its proper divisors (2032102843).

75055845061 is a wasteful number, since it uses less digits than its factorization.

75055845061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93891.

The product of its (nonzero) digits is 840000, while the sum is 46.

The spelling of 75055845061 in words is "seventy-five billion, fifty-five million, eight hundred forty-five thousand, sixty-one".