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53000025553 = 163325153531
BaseRepresentation
bin110001010111000011…
…000011010111010001
312001210122220021000101
4301113003003113101
51332021001304203
640203050252401
73554250532636
oct612703032721
9161718807011
1053000025553
1120528150712
12a331727101
134cc8462a87
1427cad4218d
1515a2e4141d
hexc570c35d1

53000025553 has 4 divisors (see below), whose sum is σ = 53325179248. Its totient is φ = 52674871860.

The previous prime is 53000025527. The next prime is 53000025587. The reversal of 53000025553 is 35552000035.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 53000025553 - 217 = 52999894481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53000055553) by changing a digit.

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, 162576603 + ... + 162576928.

It is an arithmetic number, because the mean of its divisors is an integer number (13331294812).

Almost surely, 253000025553 is an apocalyptic number.

It is an amenable number.

53000025553 is a deficient number, since it is larger than the sum of its proper divisors (325153695).

53000025553 is a wasteful number, since it uses less digits than its factorization.

53000025553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325153694.

The product of its (nonzero) digits is 11250, while the sum is 28.

Adding to 53000025553 its reverse (35552000035), we get a palindrome (88552025588).

The spelling of 53000025553 in words is "fifty-three billion, twenty-five thousand, five hundred fifty-three".

Divisors: 1 163 325153531 53000025553