55253784490 has 8 divisors (see below), whose sum is σ = 99456812100. Its totient is φ = 22101513792.

The previous prime is 55253784479. The next prime is 55253784491. The reversal of 55253784490 is 9448735255.

It can be written as a sum of positive squares in 2 ways, for example, as 51412388049 + 3841396441 = 226743^2 + 61979^2 .

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

It is not an unprimeable number, because it can be changed into a prime (55253784491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2762689215 + ... + 2762689234.

Almost surely, 2^55253784490 is an apocalyptic number.

55253784490 is a deficient number, since it is larger than the sum of its proper divisors (44203027610).

55253784490 is a wasteful number, since it uses less digits than its factorization.

55253784490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5525378456.

The product of its (nonzero) digits is 6048000, while the sum is 52.

The spelling of 55253784490 in words is "fifty-five billion, two hundred fifty-three million, seven hundred eighty-four thousand, four hundred ninety".