55477326 has 16 divisors (see below), whose sum is σ = 113048784. Its totient is φ = 18143424.

The previous prime is 55477313. The next prime is 55477327. The reversal of 55477326 is 62377455.

55477326 = 74² + 75² + ... + 550².

It is a super-3 number, since 3×55477326³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55477327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86911 + ... + 87546.

It is an arithmetic number, because the mean of its divisors is an integer number (7065549).

Almost surely, 2^55477326 is an apocalyptic number.

55477326 is an abundant number, since it is smaller than the sum of its proper divisors (57571458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55477326 is a wasteful number, since it uses less digits than its factorization.

55477326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174515.

The product of its digits is 176400, while the sum is 39.

The square root of 55477326 is about 7448.3102781772. The cubic root of 55477326 is about 381.3922290798.

The spelling of 55477326 in words is "fifty-five million, four hundred seventy-seven thousand, three hundred twenty-six".