553172405 has 4 divisors (see below), whose sum is σ = 663806892. Its totient is φ = 442537920.

The previous prime is 553172383. The next prime is 553172413. The reversal of 553172405 is 504271355.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 76492516 + 476679889 = 8746^2 + 21833^2 .

It is a de Polignac number, because none of the positive numbers 2^k-553172405 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55317236 + ... + 55317245.

It is an arithmetic number, because the mean of its divisors is an integer number (165951723).

Almost surely, 2^553172405 is an apocalyptic number.

It is an amenable number.

553172405 is a deficient number, since it is larger than the sum of its proper divisors (110634487).

553172405 is a wasteful number, since it uses less digits than its factorization.

553172405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110634486.

The product of its (nonzero) digits is 21000, while the sum is 32.

The square root of 553172405 is about 23519.6174501202. The cubic root of 553172405 is about 820.8935356969.

The spelling of 553172405 in words is "five hundred fifty-three million, one hundred seventy-two thousand, four hundred five".