75431090554 has 4 divisors (see below), whose sum is σ = 113146635834. Its totient is φ = 37715545276.

The previous prime is 75431090491. The next prime is 75431090569. The reversal of 75431090554 is 45509013457.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45509013457 = 23 ⋅1978652759.

It can be written as a sum of positive squares in only one way, i.e., 66526337329 + 8904753225 = 257927^2 + 94365^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 75431090554.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18857772637 + ... + 18857772640.

Almost surely, 2^75431090554 is an apocalyptic number.

75431090554 is a deficient number, since it is larger than the sum of its proper divisors (37715545280).

75431090554 is a wasteful number, since it uses less digits than its factorization.

75431090554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37715545279.

The product of its (nonzero) digits is 378000, while the sum is 43.

The spelling of 75431090554 in words is "seventy-five billion, four hundred thirty-one million, ninety thousand, five hundred fifty-four".