55501426 has 4 divisors (see below), whose sum is σ = 83252142. Its totient is φ = 27750712.

The previous prime is 55501423. The next prime is 55501427. The reversal of 55501426 is 62410555.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62410555 = 5 ⋅12482111.

It can be written as a sum of positive squares in only one way, i.e., 40947201 + 14554225 = 6399^2 + 3815^2 .

It is a junction number, because it is equal to n+sod(n) for n = 55501394 and 55501403.

It is not an unprimeable number, because it can be changed into a prime (55501421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13875355 + ... + 13875358.

Almost surely, 2^55501426 is an apocalyptic number.

55501426 is a deficient number, since it is larger than the sum of its proper divisors (27750716).

55501426 is a wasteful number, since it uses less digits than its factorization.

55501426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27750715.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 55501426 is about 7449.9279191144. The cubic root of 55501426 is about 381.4474481680.

The spelling of 55501426 in words is "fifty-five million, five hundred one thousand, four hundred twenty-six".