153993854554 has 4 divisors (see below), whose sum is σ = 230990781834. Its totient is φ = 76996927276.

The previous prime is 153993854543. The next prime is 153993854579. The reversal of 153993854554 is 455458399351.

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

It can be written as a sum of positive squares in only one way, i.e., 138685484025 + 15308370529 = 372405^2 + 123727^2 .

It is a junction number, because it is equal to n+sod(n) for n = 153993854492 and 153993854501.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38498463637 + ... + 38498463640.

Almost surely, 2^153993854554 is an apocalyptic number.

153993854554 is a deficient number, since it is larger than the sum of its proper divisors (76996927280).

153993854554 is an equidigital number, since it uses as much as digits as its factorization.

153993854554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76996927279.

The product of its digits is 58320000, while the sum is 61.

The spelling of 153993854554 in words is "one hundred fifty-three billion, nine hundred ninety-three million, eight hundred fifty-four thousand, five hundred fifty-four".