55497782 has 8 divisors (see below), whose sum is σ = 83415000. Its totient is φ = 27692784.

The previous prime is 55497763. The next prime is 55497811. The reversal of 55497782 is 28779455.

It is a happy number.

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

It is a congruent 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, 26807 + ... + 28802.

It is an arithmetic number, because the mean of its divisors is an integer number (10426875).

Almost surely, 2^55497782 is an apocalyptic number.

55497782 is a deficient number, since it is larger than the sum of its proper divisors (27917218).

55497782 is a wasteful number, since it uses less digits than its factorization.

55497782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56110.

The product of its digits is 705600, while the sum is 47.

The square root of 55497782 is about 7449.6833489753. The cubic root of 55497782 is about 381.4390998845.

It can be divided in two parts, 5549 and 7782, that added together give a palindrome (13331).

The spelling of 55497782 in words is "fifty-five million, four hundred ninety-seven thousand, seven hundred eighty-two".