75025666651 has 4 divisors (see below), whose sum is σ = 80796871792. Its totient is φ = 69254461512.

The previous prime is 75025666649. The next prime is 75025666673. The reversal of 75025666651 is 15666652057.

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

It is a cyclic number.

It is not a de Polignac number, because 75025666651 - 2¹ = 75025666649 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 75025666595 and 75025666604.

It is not an unprimeable number, because it can be changed into a prime (75025666601) 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, 2885602551 + ... + 2885602576.

It is an arithmetic number, because the mean of its divisors is an integer number (20199217948).

Almost surely, 2^75025666651 is an apocalyptic number.

75025666651 is a deficient number, since it is larger than the sum of its proper divisors (5771205141).

75025666651 is a wasteful number, since it uses less digits than its factorization.

75025666651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5771205140.

The product of its (nonzero) digits is 2268000, while the sum is 49.

The spelling of 75025666651 in words is "seventy-five billion, twenty-five million, six hundred sixty-six thousand, six hundred fifty-one".