55533554 has 8 divisors (see below), whose sum is σ = 85237680. Its totient is φ = 27120996.

The previous prime is 55533547. The next prime is 55533563. The reversal of 55533554 is 45533555.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 322784 + ... + 322955.

It is an arithmetic number, because the mean of its divisors is an integer number (10654710).

Almost surely, 2^55533554 is an apocalyptic number.

55533554 is a deficient number, since it is larger than the sum of its proper divisors (29704126).

55533554 is a wasteful number, since it uses less digits than its factorization.

55533554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645784.

The product of its digits is 112500, while the sum is 35.

The square root of 55533554 is about 7452.0838696300. The cubic root of 55533554 is about 381.5210365455.

Subtracting from 55533554 its reverse (45533555), we obtain a palindrome (9999999).

The spelling of 55533554 in words is "fifty-five million, five hundred thirty-three thousand, five hundred fifty-four".