75799551 has 4 divisors (see below), whose sum is σ = 101066072. Its totient is φ = 50533032.

The previous prime is 75799547. The next prime is 75799553. The reversal of 75799551 is 15599757.

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

It is not a de Polignac number, because 75799551 - 2² = 75799547 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 75799551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75799553) 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, 12633256 + ... + 12633261.

It is an arithmetic number, because the mean of its divisors is an integer number (25266518).

Almost surely, 2^75799551 is an apocalyptic number.

75799551 is a deficient number, since it is larger than the sum of its proper divisors (25266521).

75799551 is a wasteful number, since it uses less digits than its factorization.

75799551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25266520.

The product of its digits is 496125, while the sum is 48.

The square root of 75799551 is about 8706.2937579661. The cubic root of 75799551 is about 423.2096329147.

The spelling of 75799551 in words is "seventy-five million, seven hundred ninety-nine thousand, five hundred fifty-one".