55433220154 has 32 divisors (see below), whose sum is σ = 91272689424. Its totient is φ = 25093601280.

The previous prime is 55433220151. The next prime is 55433220163. The reversal of 55433220154 is 45102233455.

It can be written as a sum of positive squares in 8 ways, for example, as 1230395929 + 54202824225 = 35077^2 + 232815^2 .

It is not an unprimeable number, because it can be changed into a prime (55433220151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 510352 + ... + 609364.

Almost surely, 2^55433220154 is an apocalyptic number.

55433220154 is a deficient number, since it is larger than the sum of its proper divisors (35839469270).

55433220154 is a wasteful number, since it uses less digits than its factorization.

55433220154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99442.

The product of its (nonzero) digits is 72000, while the sum is 34.

The spelling of 55433220154 in words is "fifty-five billion, four hundred thirty-three million, two hundred twenty thousand, one hundred fifty-four".