75113855 has 4 divisors (see below), whose sum is σ = 90136632. Its totient is φ = 60091080.

The previous prime is 75113851. The next prime is 75113869. The reversal of 75113855 is 55831157.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 75113855 - 2² = 75113851 is a prime.

It is a super-2 number, since 2×75113855² = 11284182425922050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75113851) 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, 7511381 + ... + 7511390.

It is an arithmetic number, because the mean of its divisors is an integer number (22534158).

Almost surely, 2^75113855 is an apocalyptic number.

75113855 is a deficient number, since it is larger than the sum of its proper divisors (15022777).

75113855 is a wasteful number, since it uses less digits than its factorization.

75113855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15022776.

The product of its digits is 21000, while the sum is 35.

The square root of 75113855 is about 8666.8249665030. The cubic root of 75113855 is about 421.9296225936.

The spelling of 75113855 in words is "seventy-five million, one hundred thirteen thousand, eight hundred fifty-five".