75396432550 has 12 divisors (see below), whose sum is σ = 140237364636. Its totient is φ = 30158573000.

The previous prime is 75396432521. The next prime is 75396432569. The reversal of 75396432550 is 5523469357.

It is a junction number, because it is equal to n+sod(n) for n = 75396432494 and 75396432503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 753964276 + ... + 753964375.

It is an arithmetic number, because the mean of its divisors is an integer number (11686447053).

Almost surely, 2^75396432550 is an apocalyptic number.

75396432550 is a deficient number, since it is larger than the sum of its proper divisors (64840932086).

75396432550 is a wasteful number, since it uses less digits than its factorization.

75396432550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1507928663 (or 1507928658 counting only the distinct ones).

The product of its (nonzero) digits is 3402000, while the sum is 49.

The spelling of 75396432550 in words is "seventy-five billion, three hundred ninety-six million, four hundred thirty-two thousand, five hundred fifty".