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57421951559 = 717874590451
BaseRepresentation
bin110101011110100111…
…010111001001000111
312111012211112101010122
4311132213113021013
51420100004422214
642213531412155
74101653351330
oct653647271107
9174184471118
1057421951559
1122397216115
12b1665b405b
135551601a3b
142aca327287
15176125b88e
hexd5e9d7247

57421951559 has 8 divisors (see below), whose sum is σ = 65661825408. Its totient is φ = 49191262200.

The previous prime is 57421951549. The next prime is 57421951567. The reversal of 57421951559 is 95515912475.

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

It is a cyclic number.

It is not a de Polignac number, because 57421951559 - 228 = 57153516103 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 57421951559.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57421951529) 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, 2282717 + ... + 2307734.

It is an arithmetic number, because the mean of its divisors is an integer number (8207728176).

Almost surely, 257421951559 is an apocalyptic number.

57421951559 is a deficient number, since it is larger than the sum of its proper divisors (8239873849).

57421951559 is a wasteful number, since it uses less digits than its factorization.

57421951559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4592245.

The product of its digits is 2835000, while the sum is 53.

The spelling of 57421951559 in words is "fifty-seven billion, four hundred twenty-one million, nine hundred fifty-one thousand, five hundred fifty-nine".

Divisors: 1 7 1787 12509 4590451 32133157 8203135937 57421951559