76005561 has 8 divisors (see below), whose sum is σ = 101745504. Its totient is φ = 50468000.

The previous prime is 76005499. The next prime is 76005577. The reversal of 76005561 is 16550067.

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

It is a cyclic number.

It is not a de Polignac number, because 76005561 - 2¹⁸ = 75743417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (76005581) 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, 49716 + ... + 51221.

It is an arithmetic number, because the mean of its divisors is an integer number (12718188).

Almost surely, 2^76005561 is an apocalyptic number.

It is an amenable number.

76005561 is a deficient number, since it is larger than the sum of its proper divisors (25739943).

76005561 is a wasteful number, since it uses less digits than its factorization.

76005561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101191.

The product of its (nonzero) digits is 6300, while the sum is 30.

The square root of 76005561 is about 8718.1168264712. The cubic root of 76005561 is about 423.5926894959.

The spelling of 76005561 in words is "seventy-six million, five thousand, five hundred sixty-one".